update code style again

bsp/imx6ull-artpi-smart/drivers/drv_lcd.c

@@ -71,6 +71,7 @@ void rt_hw_cpu_dcache_clean(void *addr, int size);
 static rt_err_t imx6ull_elcd_control(rt_device_t device, int cmd, void *args)
 {
     struct imx6ull_lcd_bus *elcd_dev = RT_NULL;
+    int mem_size = 0;
 
     RT_ASSERT(device != RT_NULL);
 
@@ -80,8 +81,8 @@ static rt_err_t imx6ull_elcd_control(rt_device_t device, int cmd, void *args)
     {
         case RTGRAPHIC_CTRL_RECT_UPDATE:
         {
-            rt_hw_cpu_dcache_clean((void *)(g_lcd_obj.info.framebuffer),
-                                        elcd_dev->info.width * elcd_dev->info.height * elcd_dev->info.bits_per_pixel/8);
+            mem_size = elcd_dev->info.width * elcd_dev->info.height * elcd_dev->info.bits_per_pixel/8;
+            rt_hw_cpu_dcache_clean((void *)(g_lcd_obj.info.framebuffer), mem_size);
             break;
         }
         case RTGRAPHIC_CTRL_POWERON:
@@ -100,7 +101,6 @@ static rt_err_t imx6ull_elcd_control(rt_device_t device, int cmd, void *args)
             RT_ASSERT(info != RT_NULL);
 
             rt_memcpy(&info->graphic, &elcd_dev->info, sizeof(struct rt_device_graphic_info));
-
             info->screen.shamem_len = elcd_dev->info.width * elcd_dev->info.height * elcd_dev->info.bits_per_pixel/8;
             info->screen.shamem_start = (rt_uint32_t)lwp_map_user_phy(lwp_self(), RT_NULL,
                                                                         elcd_dev->fb_phy,