[errno code][-RT_ERROR] fix that use RT_ERROR without -

bsp/Infineon/libraries/HAL_Drivers/drv_hwtimer.c

@@ -198,7 +198,7 @@ static rt_err_t timer_ctrl(rt_hwtimer_t *timer, rt_uint32_t cmd, void *arg)
         if (result != CY_RSLT_SUCCESS)
         {
             LOG_E("cyhal_timer_set_frequency error\r\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
     break;
@@ -301,7 +301,7 @@ int hwtimer_sample()
     if (hw_dev == RT_NULL)
     {
         rt_kprintf("hwtimer sample run failed! can't find %s device!\n", HWTIMER_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
@@ -329,7 +329,7 @@ int hwtimer_sample()
     if (rt_device_write(hw_dev, 0, &timeout_s, sizeof(timeout_s)) != sizeof(timeout_s))
     {
         rt_kprintf("set timeout value failed\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     while (1)

bsp/Infineon/libraries/HAL_Drivers/drv_pwm.c

@@ -243,7 +243,7 @@ static int pwm_sample(int argc, char *argv[])
     if (pwm_dev == RT_NULL)
     {
         rt_kprintf("pwm sample run failed! can't find %s device!\n", PWM_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_pwm_set(pwm_dev, PWM_DEV_CHANNEL, period, pulse);

bsp/Infineon/libraries/HAL_Drivers/drv_rtc.c

@@ -153,7 +153,7 @@ static int rt_hw_rtc_init(void)
     if (rt_hw_rtc_register(&ifx32_rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR, RT_NULL) != RT_EOK)
     {
         LOG_E("rtc init failed");
-        result = RT_ERROR;
+        result = -RT_ERROR;
     }
     else
     {

bsp/Infineon/libraries/HAL_Drivers/drv_spi.c

@@ -60,7 +60,7 @@ static void ifx_spi_init(struct ifx_spi *ifx_spi)
     result = cyhal_spi_init(ifx_spi->spi_obj, ifx_spi->mosi_pin, ifx_spi->miso_pin, ifx_spi->sck_pin,
                             NC, NULL, ifx_spi->spi_obj->data_bits, ifx_spi->spi_obj->mode, false);
 
-    RT_ASSERT(result != RT_ERROR);
+    RT_ASSERT(result == RT_EOK);
 
     rt_kprintf("[%s] Freq:[%d]HZ\n", ifx_spi->bus_name, ifx_spi->freq);
 

bsp/Infineon/libraries/HAL_Drivers/drv_uart.c

@@ -182,7 +182,7 @@ static rt_err_t ifx_configure(struct rt_serial_device *serial, struct serial_con
         result = cyhal_uart_set_baud(uart->config->uart_obj, cfg->baud_rate, NULL);
     }
 
-    RT_ASSERT(result != RT_ERROR);
+    RT_ASSERT(result == RT_EOK);
 
     return RT_EOK;
 }

bsp/Infineon/libraries/HAL_Drivers/drv_wdt.c

@@ -60,7 +60,7 @@ static rt_err_t wdt_control(rt_watchdog_t *wdt_device, int cmd, void *arg)
             /* Initialize the WDT */
             int result = cyhal_wdt_init(cfg->WDTx, (rt_uint32_t)timeout_ms);
             /* WDT initialization failed. Stop program execution */
-            RT_ASSERT(result != RT_ERROR);
+            RT_ASSERT(result == RT_EOK);
         }
         break;
 

bsp/Infineon/libraries/templates/PSOC62/board/ports/slider_sample.c

@@ -234,7 +234,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/libraries/templates/PSOC62/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/Infineon/psoc6-cy8ckit-062-BLE/board/ports/slider_sample.c

@@ -234,7 +234,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/psoc6-cy8ckit-062-BLE/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/Infineon/psoc6-cy8ckit-062-WIFI-BT/board/ports/slider_sample.c

@@ -234,7 +234,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/psoc6-cy8ckit-062-WIFI-BT/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/Infineon/psoc6-cy8ckit-062S2-43012/board/ports/slider_sample.c

@@ -235,7 +235,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/psoc6-cy8ckit-062S2-43012/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/Infineon/psoc6-cy8ckit-062s4/board/ports/slider_sample.c

@@ -234,7 +234,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/psoc6-cy8ckit-062s4/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/Infineon/psoc6-cy8cproto-062S3-4343W/board/ports/slider_sample.c

@@ -235,7 +235,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/psoc6-cy8cproto-062S3-4343W/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/Infineon/psoc6-evaluationkit-062S2/board/ports/slider_sample.c

@@ -235,7 +235,7 @@ int Slider_ctrl_sample(void)
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;

bsp/Infineon/psoc6-evaluationkit-062S2/board/ports/spi_sample.c

@@ -32,7 +32,7 @@ static int rt_spi_device_init(void)
     if (RT_NULL == spi_dev)
     {
         rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_spi_configure(spi_dev, &cfg);

bsp/airm2m/air105/board/wdt_feed.c

@@ -30,14 +30,14 @@ static int wdt_feed_init(void)
     if (!wdg_dev)
     {
         rt_kprintf("find %s failed!\n", device_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout);
     if (ret != RT_EOK)
     {
         rt_kprintf("set %s timeout failed!\n", device_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     ret = rt_device_control(wdg_dev, RT_DEVICE_CTRL_WDT_START, RT_NULL);
     if (ret != RT_EOK)

bsp/airm2m/air105/libraries/rt_drivers/drv_i2c.c

@@ -85,7 +85,7 @@ static rt_ssize_t air105_i2c_slv_xfer(struct rt_i2c_bus_device *bus,
                                  struct rt_i2c_msg msgs[],
                                  rt_uint32_t num)
 {
-    return RT_ERROR;
+    return -RT_ENOSYS;
 }
 static rt_err_t air105_i2c_bus_control(struct rt_i2c_bus_device *bus,
                                    rt_uint32_t cmd,

bsp/airm2m/air105/libraries/rt_drivers/drv_usart_v2.c

@@ -232,7 +232,7 @@ static rt_err_t air105_control(struct rt_serial_device *serial, int cmd, void *a
         }
         break;
     default:
-        return RT_ERROR;
+        return -RT_EINVAL;
 
     }
     return RT_EOK;

bsp/allwinner/libraries/drivers/drv_pin.c

@@ -51,7 +51,7 @@ static rt_err_t hal_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
     if (ret < 0)
     {
         rt_kprintf("gpio to irq error, irq num:%lu error num: %d", irq, ret);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     level = rt_hw_interrupt_disable();
@@ -61,7 +61,7 @@ static rt_err_t hal_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
     {
         rt_hw_interrupt_enable(level);
         rt_kprintf("request irq error, irq num:%lu error num: %d", irq, ret);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     rt_hw_interrupt_enable(level);
 
@@ -78,7 +78,7 @@ static rt_err_t hal_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
     if (ret < 0)
     {
         rt_kprintf("gpio to irq error, irq num:%lu error num: %d", irq, ret);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     level = rt_hw_interrupt_disable();
@@ -87,7 +87,7 @@ static rt_err_t hal_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
     {
         rt_hw_interrupt_enable(level);
         rt_kprintf("free irq error, error num: %d", ret);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     return RT_EOK;
 }
@@ -101,7 +101,7 @@ static rt_err_t hal_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
     if (ret < 0)
     {
         rt_kprintf("gpio to irq error, irq num:%lu error num: %d", irq, ret);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (enabled == PIN_IRQ_ENABLE)
@@ -110,7 +110,7 @@ static rt_err_t hal_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
         if (ret < 0)
         {
             rt_kprintf("request irq error, error num: %d", ret);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
     else
@@ -119,7 +119,7 @@ static rt_err_t hal_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
         if (ret < 0)
         {
             rt_kprintf("disable irq error, irq num:%lu, error num: %d", irq, ret);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 

bsp/allwinner/libraries/sunxi-hal/hal/source/gmac/hal_geth.c

@@ -262,7 +262,7 @@ int is_enough_desc_available(struct dma_desc *entry)
     if(desc->desc0.tx.own != 0)
     {
         printf("desc %08x desc0 %08x desc1 %08x\n",desc,desc->desc0,desc->desc1);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;
@@ -284,7 +284,7 @@ int wait_tx_completed(struct dma_desc *entry)
         if(timeout_cnt > 1000)
         {
             printf("emac send data timeout \n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
     desc_tag_clean(desc);
@@ -307,13 +307,13 @@ static rt_err_t rt_geth_xmit(rt_device_t dev, struct pbuf *p)
     unsigned int i = 0;
     unsigned int copy_offset = 0;
 
-    if (!rt_geth_dev.phy_link_status) return RT_ERROR;
+    if (!rt_geth_dev.phy_link_status) return -RT_ERROR;
 
     first = rt_geth_dev.get_buffer_config.dma_desc_tx + tx_dirty;
     ret = is_enough_desc_available(first);
     if(ret < 0)
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     copy_offset = 0;
@@ -326,7 +326,7 @@ static rt_err_t rt_geth_xmit(rt_device_t dev, struct pbuf *p)
         if(copy_offset >= ((1 << 11) - 1))
         {
             printf("send data exceed max len copy_offset %d\n",copy_offset);
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 

bsp/allwinner_tina/drivers/drv_clock.c

@@ -230,7 +230,7 @@ rt_err_t cpu_set_pll_clk(int clk)
     //PLL1 rate = ((24000000 * n * k) >> 0) / m   (p is ignored)
     CCU->pll_cpu_ctrl = (0x1 << 31) | (m << 0) | (k << 4) | (n << 8) | (p << 16);
     if (wait_pll_stable((rt_uint32_t)(&CCU->pll_cpu_ctrl)))
-        return RT_ERROR;
+        return -RT_ERROR;
 
     CCU->cpu_clk_src = cpu_src << 16;
 
@@ -267,7 +267,7 @@ rt_err_t audio_set_pll_clk(int clk)
     n = clk / n_temp;
     m = _24MHZ_ * 2 / m_temp;
     if ((n > 128) || (m > 32) || (clk != (_24MHZ_ * n * 2) / m))
-        return RT_ERROR;
+        return -RT_ERROR;
 
     CCU->pll_audio_ctrl &= ~(0x1 << 31);
     n = (n - 1) & 0x7f;
@@ -276,7 +276,7 @@ rt_err_t audio_set_pll_clk(int clk)
     CCU->pll_audio_ctrl = (0x1 << 31) | (0x0 << 24) | (n << 8) | m;
 
     if (wait_pll_stable((rt_uint32_t)(&CCU->pll_audio_ctrl)))
-        return RT_ERROR;
+        return -RT_ERROR;
     else
         return RT_EOK;
 }
@@ -312,7 +312,7 @@ rt_err_t video_set_pll_clk(int clk)
     m = _24MHZ_ / m_temp;
 
     if ((n > 128) || (m > 16) || (clk != (_24MHZ_ * n) / m))
-        return RT_ERROR;
+        return -RT_ERROR;
 
     CCU->pll_video_ctrl &= ~(0x1 << 31);
     n = (n - 1) & 0x7f;
@@ -321,7 +321,7 @@ rt_err_t video_set_pll_clk(int clk)
     CCU->pll_video_ctrl = (0x1 << 31) | (0x0 << 30) | (0x1 << 24) | (n << 8) | m;
 
     if (wait_pll_stable((rt_uint32_t)(&CCU->pll_video_ctrl)))
-        return RT_ERROR;
+        return -RT_ERROR;
     else
         return RT_EOK;
 }
@@ -357,7 +357,7 @@ rt_err_t ve_set_pll_clk(int clk)
     m = _24MHZ_ / m_temp;
 
     if ((n > 128) || (m > 16) || (clk != (_24MHZ_ * n) / m))
-        return RT_ERROR;
+        return -RT_ERROR;
 
     CCU->pll_ve_ctrl &= ~(0x1 << 31);
     n = (n - 1) & 0x7f;
@@ -365,7 +365,7 @@ rt_err_t ve_set_pll_clk(int clk)
     //clk = (24 * n) / m
     CCU->pll_ve_ctrl = (0x1 << 31) | (0x1 << 24) | (n << 8) | m;
     if (wait_pll_stable((rt_uint32_t)(&CCU->pll_ve_ctrl)))
-        return RT_ERROR;
+        return -RT_ERROR;
     else
         return RT_EOK;
 }
@@ -388,7 +388,7 @@ rt_err_t periph_set_pll_clk(int clk)
     }
 
     if ((n > 32) || (k > 4) || (clk != (_24MHZ_ * n * k)))
-        return RT_ERROR;
+        return -RT_ERROR;
     temp_data = CCU->ahb_apb_hclkc_cfg;
     clk_src = (temp_data >> 12) & 0x3;
     temp_data &= ~(0x3 << 12);
@@ -400,7 +400,7 @@ rt_err_t periph_set_pll_clk(int clk)
     //clk = 24 * n *k
     CCU->pll_periph_ctrl = (0x1 << 31) | (0x1 << 18) | (n << 8) | (k << 4) || (0x1);
     if (wait_pll_stable((rt_uint32_t)(&CCU->pll_periph_ctrl)))
-        return RT_ERROR;
+        return -RT_ERROR;
 
     temp_data = CCU->ahb_apb_hclkc_cfg;
     temp_data &= ~(0x3 << 12);
@@ -423,7 +423,7 @@ rt_err_t cpu_set_clk(int clk)
         return RT_EOK;
 
     if (cpu_set_pll_clk(clk))
-        return RT_ERROR;
+        return -RT_ERROR;
 
     CCU->ahb_apb_hclkc_cfg &= ~(0x3 << 16);
     CCU->cpu_clk_src = CLK_PLL_SRC << 16;

bsp/allwinner_tina/drivers/drv_gpio.c

@@ -469,7 +469,7 @@ static rt_err_t pin_attach_irq(struct rt_device *device, rt_int32_t pin, rt_uint
     if ((pin > PIN_NUM(pin_index)) || (pin_index[pin].magic != PIN_MAGIC))
     {
         LOG_E("pin:%d value wrongful", pin);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     gpio_set_irq_callback(pin_index[pin].pin_port, pin_index[pin].pin, hdr, args);
@@ -481,7 +481,7 @@ static rt_err_t pin_detach_irq(struct rt_device *device, rt_int32_t pin)
     if ((pin > PIN_NUM(pin_index)) || (pin_index[pin].magic != PIN_MAGIC))
     {
         LOG_E("pin:%d value wrongful", pin);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     gpio_clear_irq_callback(pin_index[pin].pin_port, pin_index[pin].pin);
@@ -494,7 +494,7 @@ rt_err_t pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t ena
     if ((pin > PIN_NUM(pin_index)) || (pin_index[pin].magic != PIN_MAGIC))
     {
         LOG_E("pin:%d value wrongful", pin);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (enabled)

bsp/allwinner_tina/drivers/drv_sdio.c

@@ -774,7 +774,7 @@ err:
         rt_free(host);
     }
 
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 INIT_APP_EXPORT(tina_sdio_init);
 #endif

bsp/allwinner_tina/drivers/spi/drv_spi.c

@@ -680,7 +680,7 @@ rt_err_t tina_spi_bus_register(SPI_T *spi, const char *spi_bus_name)
 
     LOG_D("%s -> %d", __FUNCTION__, __LINE__);
 
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 
 int rt_hw_spi_init(void)

bsp/allwinner_tina/drivers/spi/drv_spi_flash.c

@@ -27,12 +27,9 @@
 #define DEBUG_PRINTF(...)
 #endif
 
-#ifdef TINA_USING_SPI_FLASH
-
+#if defined(TINA_USING_SPI_FLASH) && defined(RT_USING_SFUD)
 #include "spi_flash.h"
-
-#if defined(RT_USING_SFUD)
-#include "spi_flash_sfud.h"
+#include <spi_flash_sfud.h>
 rt_spi_flash_device_t spi_device;
 int rt_hw_spi_flash_with_sfud_init(void)
 {
@@ -41,14 +38,11 @@ int rt_hw_spi_flash_with_sfud_init(void)
     if (spi_device == NULL)
     {
         DEBUG_PRINTF("%s -> %d\n", __FUNCTION__, __LINE__);
-        return RT_ERROR;
+        return -RT_ERROR;
     };
 
     DEBUG_PRINTF("%s -> %d\n", __FUNCTION__, __LINE__);
     return RT_EOK;
 }
 INIT_PREV_EXPORT(rt_hw_spi_flash_with_sfud_init);
-
-#endif
-
-#endif
+#endif /* defined(TINA_USING_SPI_FLASH) && defined(RT_USING_SFUD) */

bsp/apm32/libraries/Drivers/drv_rtc.c

@@ -301,7 +301,7 @@ static int rt_hw_rtc_init(void)
     if (rt_hw_rtc_register(&apm32_rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR, RT_NULL) != RT_EOK)
     {
         LOG_E("rtc init failed");
-        result = RT_ERROR;
+        result = -RT_ERROR;
     }
     else
     {

bsp/at32/at32f425-start/applications/main.c

@@ -93,7 +93,7 @@ static int uart_sample(int argc, char *argv[])
     if (!serial)
     {
         rt_kprintf("find %s failed!\n", uart_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_sem_init(&rx_sem, "rx_sem", 0, RT_IPC_FLAG_FIFO);
@@ -110,7 +110,7 @@ static int uart_sample(int argc, char *argv[])
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return ret;
@@ -253,14 +253,14 @@ static int wdt_sample(int argc, char *argv[])
     if (!wdt_dev)
     {
         rt_kprintf("find %s failed!\n", device_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     ret = rt_device_control(wdt_dev, RT_DEVICE_CTRL_WDT_SET_TIMEOUT, &timeout);
     if (ret != RT_EOK)
     {
         rt_kprintf("set %s timeout failed!\n", device_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     ret = rt_device_control(wdt_dev, RT_DEVICE_CTRL_WDT_START, RT_NULL);
@@ -351,7 +351,7 @@ int can_sample(int argc, char *argv[])
     if (!can_dev)
     {
         rt_kprintf("find %s failed!\n", can_name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_sem_init(&rx_sem, "rx_sem", 0, RT_IPC_FLAG_FIFO);
@@ -500,7 +500,7 @@ static int hwtimer_sample(int argc, char *argv[])
     if (hw_dev == RT_NULL)
     {
         rt_kprintf("hwtimer sample run failed! can't find %s device!\n", HWTIMER_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
@@ -526,7 +526,7 @@ static int hwtimer_sample(int argc, char *argv[])
     if (rt_device_write(hw_dev, 0, &timeout_s, sizeof(timeout_s)) != sizeof(timeout_s))
     {
         rt_kprintf("set timeout value failed\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_thread_mdelay(1000);

bsp/at32/libraries/rt_drivers/drv_emac.c

@@ -455,7 +455,7 @@ static rt_err_t rt_at32_emac_control(rt_device_t dev, int cmd, void *args)
   */
 rt_err_t rt_at32_emac_tx(rt_device_t dev, struct pbuf *p)
 {
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
     struct pbuf *q;
     rt_uint32_t offset;
 

bsp/efm32/drv_sdcard.c

@@ -445,7 +445,7 @@ static rt_err_t efm_spiSd_writeBlock(void *buffer, rt_uint8_t token)
     rt_uint8_t buf_res[8];      /* Expect a byte for data response */
     rt_uint8_t i;
 
-    ret = RT_ERROR;
+    ret = -RT_ERROR;
     sdcard_debug("SPISD: Write block\n");
     do
     {

bsp/essemi/es32f0654/drivers/drv_i2c.c

@@ -112,7 +112,7 @@ static rt_ssize_t es32f0_master_xfer(struct rt_i2c_bus_device *bus,
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     for (i = 0; i < num; i++)
     {

bsp/essemi/es32f0654/drivers/drv_spi.c

@@ -162,7 +162,7 @@ rt_err_t spi_configure(struct rt_spi_device *device,
     return RT_EOK;
 }
 
-static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
+static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
 {
     rt_err_t res;
     spi_handle_t *hspi;
@@ -208,7 +208,7 @@ static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *
      }
 
      if (res != RT_EOK)
-         return RT_ERROR;
+         return -RT_ERROR;
      else
          return message->length;
 

bsp/essemi/es32f369x/drivers/drv_i2c.c

@@ -271,7 +271,7 @@ static rt_ssize_t es32f3_master_xfer(struct rt_i2c_bus_device *bus,
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     for (i = 0; i < num; i++)
     {

bsp/essemi/es32f369x/drivers/drv_spi.c

@@ -162,7 +162,7 @@ rt_err_t spi_configure(struct rt_spi_device *device,
     return RT_EOK;
 }
 
-static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
+static rt_ssize_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
 {
     rt_err_t res;
     spi_handle_t *hspi;
@@ -208,7 +208,7 @@ static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *
      }
 
      if (res != RT_EOK)
-         return RT_ERROR;
+         return -RT_ERROR;
      else
          return message->length;
 

bsp/ft2004/drivers/drv_qspi.c

@@ -62,7 +62,7 @@ static rt_err_t ft2004_cmdOperation(struct ft2004_qspi_bus *qspi_bus_p, struct r
     if (qspi_message->instruction.qspi_lines == 0)
     {
         LOG_E("instruction is not valid");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     cmd_pack.cmd = qspi_message->instruction.content;
@@ -130,13 +130,13 @@ static rt_err_t ft2004_cmdOperation(struct ft2004_qspi_bus *qspi_bus_p, struct r
         }
 #endif
 
-    return (ret == FQSPI_SUCCESS) ? RT_EOK : RT_ERROR;
+    return (ret == FQSPI_SUCCESS) ? RT_EOK : -RT_ERROR;
 }
 
-static rt_uint32_t ft2004_qspi_xfer(struct ft2004_qspi_bus *qspi_bus_p, struct rt_spi_message *message)
+static rt_ssize_t ft2004_qspi_xfer(struct ft2004_qspi_bus *qspi_bus_p, struct rt_spi_message *message)
 {
     struct rt_qspi_message *qspi_message = (struct rt_qspi_message *)message;
-    rt_uint32_t ret_length = 0;
+    rt_ssize_t ret_length = 0;
     const rt_uint8_t *sndb = message->send_buf;
     rt_uint8_t *rcvb = message->recv_buf;
     rt_int32_t length = message->length;
@@ -159,7 +159,7 @@ static rt_uint32_t ft2004_qspi_xfer(struct ft2004_qspi_bus *qspi_bus_p, struct r
     if (qspi_config_p->channel >= FT_QSPI_MAX_CS_NUM)
     {
         LOG_E("invalid channel[%x] ", qspi_config_p->channel);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     switch (cmd)
     {

bsp/ft2004/drivers/drv_sdcard.c

@@ -38,7 +38,7 @@ static rt_err_t _sdcard_mount(void)
         if (mmcsd_wait_cd_changed(rt_tick_from_millisecond(5000)) == -RT_ETIMEOUT)
         {
             rt_kprintf("timeout \r\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         device = rt_device_find("sd0");
     }
@@ -54,7 +54,7 @@ static rt_err_t _sdcard_mount(void)
         else
         {
             LOG_W("sd card mount to '/' failed!");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 

bsp/fujitsu/mb9x/mb9bf506r/drivers/fm3_uart.c

@@ -408,7 +408,7 @@ static rt_err_t uart03_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.ESBL = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set data bits */
@@ -440,7 +440,7 @@ static rt_err_t uart03_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.L2 = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set parity */
@@ -458,7 +458,7 @@ static rt_err_t uart03_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.P   = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set bit order */
@@ -471,7 +471,7 @@ static rt_err_t uart03_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->SMR_f.BDS = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set NRZ mode */
@@ -484,7 +484,7 @@ static rt_err_t uart03_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.INV = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     uart->uart_regs->SCR = SCR_RXE | SCR_TXE | SCR_RIE;
@@ -588,7 +588,7 @@ static rt_err_t uart47_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.ESBL = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set data bits */
@@ -620,7 +620,7 @@ static rt_err_t uart47_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.L2 = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set parity */
@@ -638,7 +638,7 @@ static rt_err_t uart47_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.P   = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set bit order */
@@ -651,7 +651,7 @@ static rt_err_t uart47_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->SMR_f.BDS = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* set NRZ mode */
@@ -664,7 +664,7 @@ static rt_err_t uart47_configure(struct rt_serial_device *serial, struct serial_
         uart->uart_regs->ESCR_f.INV = 1;
         break;
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* configure fifo */

bsp/gd32/arm/libraries/gd32_drivers/drv_spi_flash.c

@@ -59,7 +59,7 @@ static int rt_hw_spi_flash_with_sfud_init(void)
 {
     if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     };
 
     return RT_EOK;

bsp/gd32105c-eval/drivers/drv_i2c.c

@@ -229,7 +229,7 @@ static rt_ssize_t gd32_i2c_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct gd32_i2c_bus *gd32_i2c = (struct gd32_i2c_bus *)bus;
 

bsp/gd32105c-eval/drivers/drv_spi_flash.c

@@ -43,7 +43,7 @@ static int rt_hw_spi_flash_with_sfud_init(void)
 {
     if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_DEVICE_NAME, SPI_DEVICE_NAME))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/gd32107c-eval/drivers/drv_i2c.c

@@ -229,7 +229,7 @@ static rt_ssize_t gd32_i2c_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct gd32_i2c_bus *gd32_i2c = (struct gd32_i2c_bus *)bus;
 

bsp/gd32107c-eval/drivers/drv_spi_flash.c

@@ -43,7 +43,7 @@ static int rt_hw_spi_flash_with_sfud_init(void)
 {
     if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_DEVICE_NAME, SPI_DEVICE_NAME))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/gd32303e-eval/drivers/drv_i2c.c

@@ -230,7 +230,7 @@ static rt_ssize_t gd32_i2c_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct gd32_i2c_bus *gd32_i2c = (struct gd32_i2c_bus *)bus;
 

bsp/gd32303e-eval/drivers/drv_spi_flash.c

@@ -44,7 +44,7 @@ static int rt_hw_spi_flash_with_sfud_init(void)
 {
     if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_DEVICE_NAME, SPI_DEVICE_NAME))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/gd32450z-eval/drivers/drv_spi.c

@@ -320,6 +320,6 @@ rt_err_t gd32_spi_bus_register(uint32_t spi_periph,
         }
     }
 
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 #endif

bsp/gd32450z-eval/drivers/drv_spi_flash.c

@@ -76,7 +76,7 @@ static int rt_hw_spi_flash_with_sfud_init(void)
 {
     if (RT_NULL == rt_sfud_flash_probe(SPI_FLASH_CHIP, SPI_FLASH_DEVICE_NAME))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     };
 
     return RT_EOK;

bsp/gd32e230k-start/drivers/drv_i2c.c

@@ -231,7 +231,7 @@ static rt_ssize_t gd32_i2c_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct gd32_i2c_bus *gd32_i2c = (struct gd32_i2c_bus *)bus;
 

bsp/hc32/ev_hc32f4a0_lqfp176/board/ports/tca9539.c

@@ -156,7 +156,7 @@ rt_err_t TCA9539_WritePin(uint8_t u8Port, uint8_t u8Pin, uint8_t u8PinState)
     u8TempData[0] = u8Port + TCA9539_REG_OUTPUT_PORT0;
     if (RT_EOK != BSP_TCA9539_I2C_Read(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     if (0U == u8PinState)
     {
@@ -168,7 +168,7 @@ rt_err_t TCA9539_WritePin(uint8_t u8Port, uint8_t u8Pin, uint8_t u8PinState)
     }
     if (RT_EOK != BSP_TCA9539_I2C_Write(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;
@@ -196,7 +196,7 @@ rt_err_t TCA9539_ReadPin(uint8_t u8Port, uint8_t u8Pin, uint8_t *pu8PinState)
     u8TempData[0] = u8Port + TCA9539_REG_INPUT_PORT0;
     if (RT_EOK != BSP_TCA9539_I2C_Read(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     if (0U != (u8TempData[1] & u8Pin))
     {
@@ -219,7 +219,7 @@ rt_err_t TCA9539_ReadPin(uint8_t u8Port, uint8_t u8Pin, uint8_t *pu8PinState)
  *         This parameter can be one or any combination of the following values:
  *           @arg @ref TCA9539_Pin_Definition
  * @retval rt_err_t:
- *           - RT_ERROR
+ *           - -RT_ERROR
  *           - RT_EOK
  */
 rt_err_t TCA9539_TogglePin(uint8_t u8Port, uint8_t u8Pin)
@@ -229,12 +229,12 @@ rt_err_t TCA9539_TogglePin(uint8_t u8Port, uint8_t u8Pin)
     u8TempData[0] = u8Port + TCA9539_REG_OUTPUT_PORT0;
     if (RT_EOK != BSP_TCA9539_I2C_Read(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     u8TempData[1] ^= u8Pin;
     if (RT_EOK != BSP_TCA9539_I2C_Write(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;
@@ -252,7 +252,7 @@ rt_err_t TCA9539_TogglePin(uint8_t u8Port, uint8_t u8Pin)
  *         This parameter can be one of the following values:
  *           @arg @ref TCA9539_Direction_Definition
  * @retval rt_err_t:
- *           - RT_ERROR
+ *           - -RT_ERROR
  *           - RT_EOK
  */
 rt_err_t TCA9539_ConfigPin(uint8_t u8Port, uint8_t u8Pin, uint8_t u8Dir)
@@ -262,7 +262,7 @@ rt_err_t TCA9539_ConfigPin(uint8_t u8Port, uint8_t u8Pin, uint8_t u8Dir)
     u8TempData[0] = u8Port + TCA9539_REG_CONFIG_PORT0;
     if (RT_EOK != BSP_TCA9539_I2C_Read(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     if (TCA9539_DIR_OUT == u8Dir)
     {
@@ -274,7 +274,7 @@ rt_err_t TCA9539_ConfigPin(uint8_t u8Port, uint8_t u8Pin, uint8_t u8Dir)
     }
     if (RT_EOK != BSP_TCA9539_I2C_Write(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;
@@ -284,7 +284,7 @@ rt_err_t TCA9539_ConfigPin(uint8_t u8Port, uint8_t u8Pin, uint8_t u8Dir)
  * @brief  Initialize TCA9539.
  * @param  [in] None
  * @retval rt_err_t:
- *           - RT_ERROR
+ *           - -RT_ERROR
  *           - RT_EOK
  */
 int TCA9539_Init(void)
@@ -298,19 +298,19 @@ int TCA9539_Init(void)
     if (i2c_bus == RT_NULL)
     {
         rt_kprintf("can't find %s device!\n", BSP_TCA9539_I2C_BUS_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     /* All Pins are input as default */
     u8TempData[0] = TCA9539_REG_CONFIG_PORT0;
     u8TempData[1] = 0xFFU;
     if (RT_EOK != BSP_TCA9539_I2C_Write(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     u8TempData[0] = TCA9539_REG_CONFIG_PORT1;
     if (RT_EOK != BSP_TCA9539_I2C_Write(i2c_bus, u8TempData[0], &u8TempData[1], 1U))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/hc32/libraries/hc32_drivers/drv_adc.c

@@ -160,7 +160,7 @@ static rt_err_t _adc_enable(struct rt_adc_device *device, rt_uint32_t channel, r
 
 static rt_err_t _adc_convert(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
 {
-    rt_err_t rt_ret = RT_ERROR;
+    rt_err_t rt_ret = -RT_ERROR;
 
     if (!value)
     {

bsp/hc32/libraries/hc32_drivers/drv_can.c

@@ -390,7 +390,7 @@ static int _can_sendmsg(struct rt_can_device *can, const void *buf, rt_uint32_t
     ll_ret = CAN_FillTxFrame(p_can_dev->instance, CAN_TX_BUF_PTB, &stc_tx_frame);
     if (ll_ret != LL_OK)
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     /* Request transmission */
     CAN_StartTx(p_can_dev->instance, CAN_TX_REQ_PTB);

bsp/hc32/libraries/hc32_drivers/drv_eth.c

@@ -219,7 +219,7 @@ static rt_err_t rt_hc32_eth_control(rt_device_t dev, int cmd, void *args)
 /* transmit data*/
 rt_err_t rt_hc32_eth_tx(rt_device_t dev, struct pbuf *p)
 {
-    rt_err_t errval = RT_ERROR;
+    rt_err_t errval = -RT_ERROR;
     struct pbuf *q;
     uint8_t *txBuffer;
     __IO stc_eth_dma_desc_t *DmaTxDesc;

bsp/hc32/libraries/hc32_drivers/drv_pwm_tmra.c

@@ -176,7 +176,7 @@ static rt_err_t drv_pwm_set(CM_TMRA_TypeDef *TMRAx, struct rt_pwm_configuration
             if (u64val < 0xFFFF) break;
             u64val /= 2;
         }
-        if (div_bit > 10) return RT_ERROR;
+        if (div_bit > 10) return -RT_ERROR;
         //
         TMRA_SetClockDiv(TMRAx, div_bit << TMRA_BCSTR_CKDIV_POS);
         u32clkFreq = get_tmra_clk_freq(TMRAx);

bsp/hpmicro/hpm6750evk/board/eth_phy_port.c

@@ -272,7 +272,7 @@ static void phy_monitor_thread_entry(void *args)
 
 int phy_device_register(void)
 {
-    rt_err_t err = RT_ERROR;
+    rt_err_t err = -RT_ERROR;
     rt_thread_t thread_phy_monitor;
 
     /* Set ops for PHY */
@@ -308,7 +308,7 @@ int phy_device_register(void)
     }
     else
     {
-        err = RT_ERROR;
+        err = -RT_ERROR;
     }
 
     return err;

bsp/hpmicro/hpm6750evkmini/board/eth_phy_port.c

@@ -251,7 +251,7 @@ static void phy_monitor_thread_entry(void *args)
 
 int phy_device_register(void)
 {
-    rt_err_t err = RT_ERROR;
+    rt_err_t err = -RT_ERROR;
     rt_thread_t thread_phy_monitor;
 
     /* Set ops for PHY */
@@ -287,7 +287,7 @@ int phy_device_register(void)
     }
     else
     {
-        err = RT_ERROR;
+        err = -RT_ERROR;
     }
 
     return err;

bsp/hpmicro/libraries/drivers/drv_adc.c

@@ -99,7 +99,7 @@ static rt_err_t init_adc_config(hpm_rtt_adc *adc)
     cfg.adc_clk_div    = 1;
     ret = adc12_init(adc->adc_base, &cfg);
     if (ret != status_success) {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 #endif
 
@@ -113,7 +113,7 @@ static rt_err_t init_adc_config(hpm_rtt_adc *adc)
     cfg.sel_sync_ahb   = true;
     ret = adc16_init(adc->adc_base, &cfg);
     if (ret != status_success) {
-       return RT_ERROR;
+       return -RT_ERROR;
     }
 #endif
     return RT_EOK;
@@ -131,7 +131,7 @@ static rt_err_t init_channel_config(hpm_rtt_adc *adc)
 
     ret = adc12_init_channel(adc->adc_base, &ch_cfg);
     if (ret != status_success) {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 #endif
 
@@ -145,7 +145,7 @@ static rt_err_t init_channel_config(hpm_rtt_adc *adc)
 
     ret = adc16_init_channel(adc->adc_base, &ch_cfg);
     if (ret != status_success) {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 #endif
     return RT_EOK;
@@ -160,12 +160,12 @@ static rt_err_t hpm_adc_enabled(struct rt_adc_device *device, rt_uint32_t channe
     hpm_adc_handler = (hpm_rtt_adc *)device->parent.user_data;
     ret = init_adc_config(hpm_adc_handler);
     if (ret != RT_EOK) {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     hpm_adc_handler->channel = channel;
     ret = init_channel_config(hpm_adc_handler);
     if (ret != RT_EOK) {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;
@@ -208,7 +208,7 @@ int rt_hw_adc_init(void)
     for (uint32_t i = 0; i < adc_nums; i++) {
        ret = rt_hw_adc_register(&hpm_adc_config_tbl[i].hpm_adc_device, hpm_adc_config_tbl[i].adc_name, &hpm_adc_ops, &hpm_adc_config_tbl[i]);
        if (ret != RT_EOK) {
-           ret = RT_ERROR;
+           ret = -RT_ERROR;
            break;
        }
     }

bsp/hpmicro/libraries/drivers/drv_enet.c

@@ -239,7 +239,7 @@ static rt_err_t rt_hpm_eth_control(rt_device_t dev, int cmd, void * args)
 
 static rt_err_t rt_hpm_eth_tx(rt_device_t dev, struct pbuf * p)
 {
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
     uint32_t status;
     enet_device *enet_dev = (enet_device *)dev->user_data;
     uint32_t tx_buff_size = enet_dev->desc.tx_buff_cfg.size;
@@ -436,7 +436,7 @@ SDK_DECLARE_EXT_ISR_M(IRQn_ENET1, isr_enet1)
 
 int rt_hw_eth_init(void)
 {
-    rt_err_t err = RT_ERROR;
+    rt_err_t err = -RT_ERROR;
 
     for (uint32_t i = 0; i < ARRAY_SIZE(s_geths); i++)
     {

bsp/hpmicro/libraries/drivers/drv_i2c.c

@@ -74,7 +74,7 @@ static rt_ssize_t hpm_i2c_master_transfer(struct rt_i2c_bus_device *bus, struct
     struct hpm_i2c *i2c_info = (struct hpm_i2c *)bus;
 
     hpm_stat_t i2c_stat = status_success;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
     rt_uint32_t i;
 
     for (i = 0; i < num; i++)

bsp/hpmicro/libraries/drivers/drv_i2s.c

@@ -434,7 +434,7 @@ static rt_err_t hpm_i2s_start(struct rt_audio_device* audio, int stream)
         }
 
         if (RT_EOK != hpm_i2s_transmit(&hpm_audio->audio, NULL, hpm_audio->rx_buff, I2S_FIFO_SIZE)) {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     } else {
         return -RT_ERROR;

bsp/hpmicro/libraries/drivers/drv_pdm.c

@@ -217,7 +217,7 @@ static rt_err_t hpm_pdm_start(struct rt_audio_device* audio, int stream)
         }
 
         if (RT_EOK != hpm_pdm_dma_transmit()) {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 
@@ -254,7 +254,7 @@ static rt_err_t hpm_pdm_dma_transmit()
 
     if (status_success != dma_setup_channel(dma_resource.base, dma_resource.channel, &ch_config)) {
         LOG_E("dma setup channel failed\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if (l1c_dc_is_enabled()) {

bsp/hpmicro/libraries/drivers/drv_uart_v2.c

@@ -704,7 +704,7 @@ hpm_stat_t hpm_uart_dma_tx_init(struct hpm_uart *uart_ctx)
     return status;
 }
 
-static int hpm_uart_dma_config(struct rt_serial_device *serial, void *arg)
+static rt_err_t hpm_uart_dma_config(struct rt_serial_device *serial, void *arg)
 {
     rt_ubase_t ctrl_arg = (rt_ubase_t) arg;
     struct hpm_uart *uart = (struct hpm_uart *)serial->parent.user_data;
@@ -720,7 +720,7 @@ static int hpm_uart_dma_config(struct rt_serial_device *serial, void *arg)
         config.src_fixed = true;
         config.size_in_byte = serial->config.rx_bufsz;
         if (status_success != dma_setup_handshake(uart->rx_chn_ctx.resource.base, &config)) {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         uint32_t mux = DMA_SOC_CHN_TO_DMAMUX_CHN(uart->rx_chn_ctx.resource.base, uart->rx_dma_mux);
         dmamux_config(BOARD_UART_DMAMUX, uart->rx_chn_ctx.resource.channel, mux, true);
@@ -1288,7 +1288,7 @@ int rt_hw_uart_init(void)
     }
 
     if (RT_EOK != hpm_uart_config()) {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     for (uint32_t i = 0; i < sizeof(uarts) / sizeof(uarts[0]); i++) {

bsp/imxrt/libraries/drivers/drv_can.c

@@ -263,7 +263,7 @@ static rt_err_t can_control(struct rt_can_device *can_dev, int cmd, void *arg)
         if (filter_mask == 0xffffffff)
         {
             LOG_E("%s filter is full!\n", can->name);
-            res = RT_ERROR;
+            res = -RT_ERROR;
             break;
         }
         else if (filter_mask == 0)
@@ -316,7 +316,7 @@ static rt_err_t can_control(struct rt_can_device *can_dev, int cmd, void *arg)
             {
                 if (filter_mask & (1 << item->hdr_bank))
                 {
-                    res = RT_ERROR;
+                    res = -RT_ERROR;
                     LOG_E("%s hdr%d filter already set!\n", can->name, item->hdr_bank);
                     break;
                 }
@@ -338,28 +338,28 @@ static rt_err_t can_control(struct rt_can_device *can_dev, int cmd, void *arg)
         break;
 
     case RT_CAN_CMD_SET_BAUD:
-        res = RT_ERROR;
+        res = -RT_ERROR;
         break;
     case RT_CAN_CMD_SET_MODE:
-        res = RT_ERROR;
+        res = -RT_ERROR;
         break;
 
     case RT_CAN_CMD_SET_PRIV:
-        res = RT_ERROR;
+        res = -RT_ERROR;
         break;
     case RT_CAN_CMD_GET_STATUS:
         FLEXCAN_GetBusErrCount(can->base, (rt_uint8_t *)(&can->can_dev.status.snderrcnt), (rt_uint8_t *)(&can->can_dev.status.rcverrcnt));
         rt_memcpy(arg, &can->can_dev.status, sizeof(can->can_dev.status));
         break;
     default:
-        res = RT_ERROR;
+        res = -RT_ERROR;
         break;
     }
 
     return res;
 }
 
-static int can_send(struct rt_can_device *can_dev, const void *buf, rt_uint32_t boxno)
+static rt_ssize_t can_send(struct rt_can_device *can_dev, const void *buf, rt_uint32_t boxno)
 {
     struct imxrt_can *can;
     struct rt_can_msg *msg;
@@ -420,14 +420,14 @@ static int can_send(struct rt_can_device *can_dev, const void *buf, rt_uint32_t
         ret = RT_EOK;
         break;
     case kStatus_Fail:
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
         break;
     case kStatus_FLEXCAN_TxBusy:
-        ret = RT_EBUSY;
+        ret = -RT_EBUSY;
         break;
     }
 
-    return ret;
+    return (rt_ssize_t)ret;
 }
 
 static int can_recv(struct rt_can_device *can_dev, void *buf, rt_uint32_t boxno)

bsp/imxrt/libraries/drivers/drv_i2c.c

@@ -375,7 +375,7 @@ static rt_err_t imxrt_i2c_bus_control(struct rt_i2c_bus_device *bus,
                                       rt_uint32_t cmd,
                                       rt_uint32_t arg)
 {
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 
 #endif

bsp/imxrt/libraries/drivers/drv_rtc.c

@@ -183,7 +183,7 @@ static int rtc_sample(int argc, char *argv[])
     if (!device)
     {
       LOG_E("find %s failed!", RTC_NAME);
-      return RT_ERROR;
+      return -RT_ERROR;
     }
 
     if(rt_device_open(device, 0) != RT_EOK)

bsp/imxrt/libraries/drivers/drv_usbd.c

@@ -220,7 +220,7 @@ static rt_err_t drv_ehci0_usbd_init(rt_device_t device)
     else
     {
         rt_kprintf("USB_DeviceInit ehci0 error\r\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     return RT_EOK;
 }

bsp/k210/drivers/drv_lcd.c

@@ -390,7 +390,7 @@ static rt_err_t drv_lcd_init(rt_device_t dev)
 
     if(!lcd)
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     drv_lcd_hw_init(lcd);
     /* reset LCD */

bsp/loongson/ls1cdev/drivers/display_controller.c

@@ -134,7 +134,7 @@ static rt_err_t rt_dc_init(rt_device_t dev)
     if (mode<0)
     {
         rt_kprintf("\n\n\nunsupported framebuffer resolution\n\n\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     DC_FB_CONFIG = 0x0;

bsp/loongson/ls1cdev/drivers/drv_can.c

@@ -276,7 +276,7 @@ static rt_err_t control(struct rt_can_device *can, int cmd, void *arg)
                 argval != RT_CAN_MODE_LOOPBACK ||
                 argval != RT_CAN_MODE_LOOPBACKANLISTEN)
         {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         if (argval != can->config.mode)
         {
@@ -294,7 +294,7 @@ static rt_err_t control(struct rt_can_device *can, int cmd, void *arg)
                 argval != CAN100kBaud &&
                 argval != CAN50kBaud  )
         {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
         if (argval != can->config.baud_rate)
         {

bsp/loongson/ls1cdev/drivers/drv_touch.c

@@ -229,7 +229,7 @@ static int rt_touch_init(void)
         return rt_thread_startup(thread);
     }
 
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 INIT_APP_EXPORT(rt_touch_init);
 

bsp/loongson/ls1cdev/drivers/drv_wdt.c

@@ -36,7 +36,7 @@ static rt_err_t wdt_stop(void)
     if (ret != RT_EOK)
     {
         rt_kprintf("Wdog_Disable error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     return ret;
 }
@@ -50,7 +50,7 @@ static rt_err_t wdt_start(int mode)
     if (ret != RT_EOK)
     {
         rt_kprintf("Wdog_Disable error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     if((mode == RESTENABLE) || (mode == INTERRUPTENABLE))
@@ -62,7 +62,7 @@ static rt_err_t wdt_start(int mode)
     if (ret != RT_EOK)
     {
         rt_kprintf("Wdog_Enable error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return ret;
@@ -79,7 +79,7 @@ static rt_err_t wdt_keepalive(void)
     if (ret != 0)
     {
         rt_kprintf("LS1C_Wdog_ClrTimeout error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return ret;
@@ -106,7 +106,7 @@ static rt_err_t wdt_set_timeout(rt_uint32_t second)
     if (ret != RT_EOK)
     {
         rt_kprintf("Wdog_LoadValue error!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     return ret;
 }

bsp/loongson/ls2kdev/drivers/drv_uart.c

@@ -44,7 +44,7 @@ static rt_err_t ls2k_uart_set_buad(struct rt_serial_device *serial, struct seria
     UART_LCR(uart_dev->base) = 0x80; // Activate buadcfg
     UART_LSB(uart_dev->base) = brtc & 0xff;
     UART_MSB(uart_dev->base) = brtc >> 8;
-    if (((((short)UART_MSB(uart_dev->base)) << 8) | UART_LSB(uart_dev->base)) != brtc) ret = RT_ERROR;
+    if (((((short)UART_MSB(uart_dev->base)) << 8) | UART_LSB(uart_dev->base)) != brtc) ret = -RT_ERROR;
     UART_LCR(uart_dev->base) = CFCR_8BITS; // Back to normal
     UART_MCR(uart_dev->base) = MCR_IENABLE/* | MCR_DTR | MCR_RTS*/;
     UART_IER(uart_dev->base) = 0;

bsp/lpc54114-lite/drivers/drv_gpio.c

@@ -146,7 +146,7 @@ static int lpc_pin_read(rt_device_t dev, rt_base_t pin)
     int  portx, piny, value;
 
     if(pin > PIN_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     portx = get_port(pin);
     piny  = get_pin(pin);
@@ -187,7 +187,7 @@ static rt_err_t lpc_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
     int portx, piny, trigger_mode, pin_initx, pintsel, pin_cfg, i;
 
     if(pin > PIN_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     portx = get_port(pin);
     piny  = get_pin(pin);
@@ -228,7 +228,7 @@ static rt_err_t lpc_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
     }
 
     if(i >= IRQ_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     /* open clk */
     CLOCK_EnableClock(kCLOCK_InputMux);
@@ -258,7 +258,7 @@ static rt_err_t lpc_pin_detach_irq(struct rt_device *device, rt_int32_t pin)
     int i;
 
     if(pin > PIN_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     for(i = 0; i < IRQ_MAX_VAL; i++)
     {
@@ -280,7 +280,7 @@ static rt_err_t lpc_pin_irq_enable(struct rt_device *device, rt_base_t pin,
     int irqn_type, i;
 
     if(pin > PIN_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     for(i = 0; i < IRQ_MAX_VAL; i++)
     {
@@ -318,7 +318,7 @@ static rt_err_t lpc_pin_irq_enable(struct rt_device *device, rt_base_t pin,
     }
 
     if(i >= IRQ_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
       return RT_EOK;
 }

bsp/lpc54114-lite/drivers/drv_spi_flash.c

@@ -26,7 +26,7 @@ int rt_hw_flash_init(void)
 
     if(rt_sfud_flash_probe("flash0", "spi20") == RT_NULL)
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/lpc54608-LPCXpresso/drivers/drv_emac.c

@@ -288,7 +288,7 @@ static rt_err_t lpc_emac_phy_init(phy_speed_t * speed, phy_duplex_t * duplex)
         eth_device_linkchange(&lpc_emac_device.parent, RT_FALSE);
 
         ETH_PRINTF("PHY_Init failed!\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /* Wait for link up and get the actual PHY link speed. */
@@ -428,7 +428,7 @@ rt_err_t lpc_emac_tx(rt_device_t dev, struct pbuf *p)
 
     if (p->tot_len > ENET_TXBUFF_SIZE)
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     packet_dump("TX dump", p);
@@ -439,7 +439,7 @@ rt_err_t lpc_emac_tx(rt_device_t dev, struct pbuf *p)
         result = rt_sem_take(&lpc_emac_device.tx_wait, RT_TICK_PER_SECOND/10);
         if (result != RT_EOK)
         {
-            return RT_ERROR;
+            return -RT_ERROR;
         }
     }
 
@@ -453,7 +453,7 @@ rt_err_t lpc_emac_tx(rt_device_t dev, struct pbuf *p)
 
     if ((result == kStatus_ENET_TxFrameFail) || (result == kStatus_ENET_TxFrameOverLen) || (result == kStatus_ENET_TxFrameBusy))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/lpc54608-LPCXpresso/drivers/drv_i2c.c

@@ -149,7 +149,7 @@ static rt_ssize_t lpc_i2c_xfer(struct rt_i2c_bus_device *bus,
     struct rt_i2c_msg *msg;
     i2c_master_transfer_t xfer = {0};
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct lpc_i2c_bus *lpc_i2c = (struct lpc_i2c_bus *)bus;
 

bsp/lpc55sxx/Libraries/drivers/drv_i2c.c

@@ -89,7 +89,7 @@ static rt_ssize_t lpc_i2c_xfer(struct rt_i2c_bus_device *bus,
     struct rt_i2c_msg *msg;
     i2c_master_transfer_t xfer = {0};
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct lpc_i2c_bus *lpc_i2c = (struct lpc_i2c_bus *)bus;
 

bsp/lpc55sxx/Libraries/drivers/drv_mma8562.c

@@ -118,7 +118,7 @@ int mma8562_hw_init(void)
     if (val != kMMA8562_WHO_AM_I_Device_ID)
     {
         rt_kprintf("MMA8562: Unexpected result from WHO_AM_I (0x%02x)\n", val);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     /*  please refer to the "example FXOS8700CQ Driver Code" in FXOS8700 datasheet. */

bsp/lpc55sxx/Libraries/drivers/drv_pin.c

@@ -206,7 +206,7 @@ static rt_int8_t lpc_pin_read(rt_device_t dev, rt_base_t pin)
     int value;
     if ((pin > __ARRAY_LEN(lpc_pin_map)) || (pin == 0))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     value = GPIO_PinRead(lpc_pin_map[pin].gpio, lpc_pin_map[pin].gpio_port, lpc_pin_map[pin].gpio_pin);
@@ -268,7 +268,7 @@ static rt_err_t lpc_pin_attach_irq(struct rt_device *device,
 
     if ((pin > __ARRAY_LEN(lpc_pin_map)) || (pin == 0))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     switch (mode)
@@ -307,7 +307,7 @@ static rt_err_t lpc_pin_attach_irq(struct rt_device *device,
     }
 
     if(i >= IRQ_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     /* Initialize PINT */
     PINT_Init(PINT);
@@ -342,7 +342,7 @@ static rt_err_t lpc_pin_detach_irq(struct rt_device *device, rt_base_t pin)
 
     if ((pin > __ARRAY_LEN(lpc_pin_map)) || (pin == 0))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     for(i = 0; i < IRQ_MAX_VAL; i++)
@@ -365,7 +365,7 @@ static rt_err_t lpc_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
 
     if ((pin > __ARRAY_LEN(lpc_pin_map)) || (pin == 0))
     {
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     for(i = 0; i < IRQ_MAX_VAL; i++)
@@ -404,7 +404,7 @@ static rt_err_t lpc_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
     }
 
     if(i >= IRQ_MAX_VAL)
-        return RT_ERROR;
+        return -RT_ERROR;
 
     return RT_EOK;
 }

bsp/maxim/libraries/HAL_Drivers/drv_spi.c

@@ -38,7 +38,7 @@ static struct mcu_drv_spi spi_bus_obj[sizeof(spi_config) / sizeof(spi_config[0])
   * @brief  This function config spi bus
   * @param  device
   * @param  configuration
-  * @retval RT_EOK / RT_ERROR
+  * @retval RT_EOK / -RT_ERROR
   */
 static rt_err_t spi_configure(struct rt_spi_device *device,
                               struct rt_spi_configuration *configuration)
@@ -63,7 +63,7 @@ static rt_err_t spi_configure(struct rt_spi_device *device,
         break;
     default:
         LOG_E("spi_configure mode error %x\n", configuration->mode);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     tmp_spi->spixfer_req.width = SPI17Y_WIDTH_1;
@@ -119,7 +119,7 @@ static const struct rt_spi_ops nrfx_spi_ops =
 /*spi bus init*/
 static int rt_hw_spi_bus_init(void)
 {
-    rt_err_t result = RT_ERROR;
+    rt_err_t result = -RT_ERROR;
     for (int i = 0; i < sizeof(spi_config) / sizeof(spi_config[0]); i++)
     {
         spi_bus_obj[i].spi_instance = spi_config[i].spi_instance;
@@ -155,7 +155,7 @@ rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name,
     if (result != RT_EOK)
     {
         LOG_E("%s attach to %s faild, %d", device_name, bus_name, result);
-        result = RT_ERROR;
+        result = -RT_ERROR;
     }
     /* TODO: SET THE GPIO */
 

bsp/maxim/libraries/HAL_Drivers/drv_spi.h

@@ -22,7 +22,7 @@
  * @param bus_name     spi bus name  "spi0"/"spi1"/"spi2"
  * @param device_name  spi device name "spi0x"/"spi1x"/"spi2x"
  * @param ss_pin       spi ss pin number
- * @retval  RT_ERROR / RT_EOK
+ * @retval  -RT_ERROR / RT_EOK
 */
 rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_uint32_t ss_pin);
 

bsp/microchip/common/applications/can_demo.c

@@ -266,7 +266,7 @@ static void can_thread_entry(void* parameter)
  *
  * @param    msg - message to be sent, timeouts - wait timeouts for Tx completion.
  *
- * @return   RT_OK or RT_ERROR.
+ * @return   RT_OK or -RT_ERROR.
  */
 
 rt_err_t can_send_message(struct can_message *msg, rt_uint32_t timeouts)
@@ -276,7 +276,7 @@ rt_err_t can_send_message(struct can_message *msg, rt_uint32_t timeouts)
     if (RT_NULL == msg)
     {
         rt_kprintf("can_send_message input message error\r\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     can_async_write(&CAN_0, msg);

bsp/microchip/common/board/sam_gmac.c

@@ -332,7 +332,7 @@ static void rt_sam_eth_monitor(void *parameter)
  *
  * @param
  *
- * @return   RT_OK or RT_ERROR.
+ * @return   RT_OK or -RT_ERROR.
  */
 
 static int rt_hw_sam_eth_init(void)

bsp/microchip/common/board/sam_i2c.c

@@ -93,7 +93,7 @@ static rt_err_t sam_i2c_bus_control(struct rt_i2c_bus_device *bus,
                                     rt_uint32_t cmd,
                                     rt_uint32_t arg)
 {
-    return RT_ERROR;
+    return -RT_ERROR;
     struct sam_i2c_bus *sam_i2c = (struct sam_i2c_bus *)bus;
 
     RT_ASSERT(bus != RT_NULL);

bsp/n32/libraries/n32_drivers/drv_i2c.c

@@ -340,7 +340,7 @@ static rt_ssize_t rt_i2c_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg m
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     struct rt_i2c_bus *rt_i2c = (struct rt_i2c_bus *)bus;
 

bsp/n32g452xx/Libraries/rt_drivers/drv_spi.c

@@ -103,7 +103,7 @@ static rt_err_t n32_spi_init(struct n32_spi *spi_drv, struct rt_spi_configuratio
     if (cfg->mode & RT_SPI_SLAVE)
     {
         /* SPI_InitStructure->SpiMode = SPI_MODE_SLAVE; */
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     else
     {

bsp/n32g452xx/n32g452xx-mini-system/board/msp/n32_msp.c

@@ -864,7 +864,7 @@ static int adc_vol_sample(int argc, char *argv[])
     if (adc_dev == RT_NULL)
     {
         rt_kprintf("adc sample run failed! can't find %s device!\n", ADC_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     for (int i = 1; i <= 18; ++i)
@@ -900,7 +900,7 @@ static int hwtimer_init(const char *name)
     if (hw_dev == RT_NULL)
     {
         rt_kprintf("hwtimer sample run failed! can't find %s device!\n", name);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     ret = rt_device_open(hw_dev, RT_DEVICE_OFLAG_RDWR);
     if (ret != RT_EOK)
@@ -921,7 +921,7 @@ static int hwtimer_init(const char *name)
     if (rt_device_write(hw_dev, 0, &timeout_s, sizeof(timeout_s)) != sizeof(timeout_s))
     {
         rt_kprintf("set timeout value failed\n");
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_thread_mdelay(3500);

bsp/nrf5x/libraries/drivers/drv_gpio.c

@@ -266,7 +266,7 @@ static rt_err_t nrf5x_pin_attach_irq(struct rt_device *device, rt_int32_t pin,
         case NRFX_ERROR_NO_MEM:
             return RT_ENOMEM;
         default:
-            return RT_ERROR;
+            return -RT_ERROR;
     }
 }
 

bsp/nrf5x/libraries/drivers/drv_pwm.c

@@ -397,7 +397,7 @@ static int pwm_led_sample(int argc, char *argv[])
     if (pwm_dev == RT_NULL)
     {
         rt_kprintf("pwm sample run failed! can't find %s device!\n", PWM_DEV_NAME);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     rt_pwm_set(pwm_dev, PWM_DEV_CHANNEL, period, pulse);

bsp/nrf5x/libraries/drivers/drv_spi.c

@@ -143,7 +143,7 @@ nrfx_spim_evt_handler_t spi_handler[] = {spi0_handler, spi1_handler, spi2_handle
   * @brief  This function config spi bus
   * @param  device
   * @param  configuration
-  * @retval RT_EOK / RT_ERROR
+  * @retval RT_EOK / -RT_ERROR
   */
 static rt_err_t spi_configure(struct rt_spi_device *device,
                               struct rt_spi_configuration *configuration)
@@ -191,7 +191,7 @@ static rt_err_t spi_configure(struct rt_spi_device *device,
         break;
     default:
         LOG_E("spi_configure mode error %x\n",configuration->mode);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     /* spi frequency config */
     switch (configuration->max_hz / 1000)
@@ -229,7 +229,7 @@ static rt_err_t spi_configure(struct rt_spi_device *device,
     if(NRFX_SUCCESS == nrf_ret)
         return RT_EOK;
 
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 
 static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
@@ -288,7 +288,7 @@ static const struct rt_spi_ops nrfx_spi_ops =
 /*spi bus init*/
 static int rt_hw_spi_bus_init(void)
 {
-    rt_err_t result = RT_ERROR;
+    rt_err_t result = -RT_ERROR;
     for (int i = 0; i < sizeof(spi_config) / sizeof(spi_config[0]); i++)
     {
         spi_bus_obj[i].spi = spi_config[i].spi;
@@ -324,7 +324,7 @@ rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name,
     if (result != RT_EOK)
     {
         LOG_E("%s attach to %s faild, %d", device_name, bus_name, result);
-        result = RT_ERROR;
+        result = -RT_ERROR;
     }
     RT_ASSERT(result == RT_EOK);
     return result;
@@ -453,7 +453,7 @@ nrfx_spi_evt_handler_t spi_handler[] = {spi0_handler, spi1_handler, spi2_handler
   * @brief  This function config spi bus
   * @param  device
   * @param  configuration
-  * @retval RT_EOK / RT_ERROR
+  * @retval RT_EOK / -RT_ERROR
   */
 static rt_err_t spi_configure(struct rt_spi_device *device,
                               struct rt_spi_configuration *configuration)
@@ -501,7 +501,7 @@ static rt_err_t spi_configure(struct rt_spi_device *device,
         break;
     default:
         LOG_E("spi_configure mode error %x\n",configuration->mode);
-        return RT_ERROR;
+        return -RT_ERROR;
     }
     /* spi frequency config */
     switch (configuration->max_hz / 1000)
@@ -539,7 +539,7 @@ static rt_err_t spi_configure(struct rt_spi_device *device,
     if(NRFX_SUCCESS == nrf_ret)
         return RT_EOK;
 
-    return RT_ERROR;
+    return -RT_ERROR;
 }
 
 static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *message)
@@ -598,7 +598,7 @@ static const struct rt_spi_ops nrfx_spi_ops =
 /*spi bus init*/
 static int rt_hw_spi_bus_init(void)
 {
-    rt_err_t result = RT_ERROR;
+    rt_err_t result = -RT_ERROR;
     for (int i = 0; i < sizeof(spi_config) / sizeof(spi_config[0]); i++)
     {
         spi_bus_obj[i].spi = spi_config[i].spi;
@@ -634,7 +634,7 @@ rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name,
     if (result != RT_EOK)
     {
         LOG_E("%s attach to %s faild, %d", device_name, bus_name, result);
-        result = RT_ERROR;
+        result = -RT_ERROR;
     }
     RT_ASSERT(result == RT_EOK);
     return result;

bsp/nrf5x/libraries/drivers/drv_spi.h

@@ -25,7 +25,7 @@
  * @param bus_name     spi bus name  "spi0"/"spi1"/"spi2"
  * @param device_name  spi device name "spi0x"/"spi1x"/"spi2x"
  * @param ss_pin       spi ss pin number
- * @retval  RT_ERROR / RT_EOK
+ * @retval  -RT_ERROR / RT_EOK
 */
 rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_uint32_t ss_pin);
 
@@ -97,7 +97,7 @@ struct nrfx_drv_spi_pin_config
  * @param bus_name     spi bus name  "spi0"/"spi1"/"spi2"
  * @param device_name  spi device name "spi0x"/"spi1x"/"spi2x"
  * @param ss_pin       spi ss pin number
- * @retval  RT_ERROR / RT_EOK
+ * @retval  -RT_ERROR / RT_EOK
 */
 rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, rt_uint32_t ss_pin);
 

bsp/nrf5x/libraries/drivers/drv_uart.c

@@ -161,7 +161,7 @@ static rt_err_t _uart_ctrl(struct rt_serial_device *serial, int cmd, void *arg)
         break;
 
     default:
-        return RT_ERROR;
+        return -RT_ERROR;
     }
 
     return RT_EOK;

bsp/nuclei/libraries/gd32vf103/HAL_Drivers/drv_i2c.c

@@ -123,7 +123,7 @@ static rt_ssize_t gd32_i2c_xfer(struct rt_i2c_bus_device *device, struct rt_i2c_
 {
     struct rt_i2c_msg *msg;
     rt_uint32_t i;
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
     rt_uint16_t last_flags;
 
     RT_ASSERT(device != RT_NULL);

bsp/nuvoton/libraries/m031/rtt_port/drv_adc.c

@@ -134,7 +134,7 @@ static rt_err_t nu_get_adc_value(struct rt_adc_device *device, rt_uint32_t chann
 
 int rt_hw_adc_init(void)
 {
-    rt_err_t result = RT_ERROR;
+    rt_err_t result = -RT_ERROR;
     int nu_sel = 0;
 
     while (nu_adc_arr[nu_sel].name != 0)

bsp/nuvoton/libraries/m031/rtt_port/drv_bpwm_capture.c

@@ -179,7 +179,7 @@ static rt_err_t nu_capture_get_pulsewidth(struct rt_inputcapture_device *inputca
     }
     else
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
     return -(ret);
 }
@@ -201,7 +201,7 @@ static void bpwm_config(nu_capture_t *nu_capture)
 
 static rt_err_t nu_bpwm_init(nu_capture_t *nu_capture)
 {
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
     static rt_bool_t bBPWM0Inited = RT_FALSE;
     static rt_bool_t bBPWM1Inited = RT_FALSE;
 
@@ -249,7 +249,7 @@ static rt_err_t nu_capture_init(struct rt_inputcapture_device *inputcapture)
     if (nu_bpwm_init(nu_capture) != RT_EOK)
     {
         rt_kprintf("Failed to initialize BPWM.\n");
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
     }
 
     return -(ret);

bsp/nuvoton/libraries/m031/rtt_port/drv_gpio.c

@@ -239,7 +239,7 @@ static rt_err_t nu_gpio_irq_enable(struct rt_device *device, rt_base_t pin, rt_u
     irqindex = nu_find_irqindex(pin);
     if (irqindex == -(RT_ERROR))
     {
-        ret = RT_ERROR;
+        ret = -RT_ERROR;
         goto exit_nu_gpio_irq_enable;
     }
 

bsp/nuvoton/libraries/m031/rtt_port/drv_i2c.c

@@ -301,7 +301,7 @@ static rt_ssize_t nu_i2c_mst_xfer(struct rt_i2c_bus_device *bus,
 /* Public functions -------------------------------------------------------------*/
 int rt_hw_i2c_init(void)
 {
-    rt_err_t ret = RT_ERROR;
+    rt_err_t ret = -RT_ERROR;
 
     SYS_UnlockReg();
 

bsp/nuvoton/libraries/m031/rtt_port/drv_pdma.c

@@ -681,7 +681,7 @@ static rt_err_t nu_pdma_sgtbls_valid(nu_pdma_desc_t head)
         {
             rt_kprintf("The distance is over %d between 0x%08x and 0x%08x. \n", NU_PDMA_SG_LIMITED_DISTANCE, PDMA->SCATBA, node);
             rt_kprintf("Please use nu_pdma_sgtbl_allocate to allocate valid sg-table.\n");
-            return RT_ERROR;
+            return -RT_ERROR;
         }
 
         node = (nu_pdma_desc_t)(node->NEXT + PDMA->SCATBA);