@@ -1204,12 +1204,12 @@ static rt_err_t rt_serial_control(struct rt_device *dev,
rt_memset(row_s,0,4);
rt_memset(col_s,0,4);
cnt1 = 0;
- while(_tio_buf[cnt1] != ';' && cnt1 < _TIO_BUFLEN)
+ while(cnt1 < _TIO_BUFLEN && _tio_buf[cnt1] != ';')
{
cnt1++;
}
cnt2 = ++cnt1;
- while(_tio_buf[cnt2] != ';' && cnt2 < _TIO_BUFLEN)
+ while(cnt2 < _TIO_BUFLEN && _tio_buf[cnt2] != ';')
cnt2++;
@@ -1316,12 +1316,12 @@ static rt_err_t rt_serial_control(struct rt_device *dev,