diff options
| author | diskwu <[email protected]> | 2022-01-21 11:06:37 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2022-01-21 11:06:37 +0800 |
| commit | 03f46c6694056a6284b06422bc7b1329b0e3e003 (patch) | |
| tree | 7c3b88499a664fb6f729e9762712ec6afdaf05c1 /bsp | |
| parent | b5de9861220b58f57d2018464e6b4b074377cd4f (diff) | |
避免警告，变量可能未初始化就使用 (#5544)
* 避免警告，变量可能未初始化就使用
* 避免警告，变量可能未初始化就使用
* 避免警告，变化可能未初始化就使用。
* Update bsp/stm32/libraries/HAL_Drivers/drv_usart.c
Co-authored-by: guo <[email protected]>
* Update bsp/stm32/libraries/HAL_Drivers/drv_usart_v2.c
Co-authored-by: guo <[email protected]>
Co-authored-by: guo <[email protected]>
Diffstat (limited to 'bsp')
| -rw-r--r-- | bsp/stm32/libraries/HAL_Drivers/drv_usart.c | 3 | ||||
| -rw-r--r-- | bsp/stm32/libraries/HAL_Drivers/drv_usart_v2.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c index 7807e0c010..6211676056 100644 --- a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c +++ b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c @@ -918,6 +918,7 @@ static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag) struct stm32_uart *uart; RT_ASSERT(serial != RT_NULL); + RT_ASSERT(flag == RT_DEVICE_FLAG_DMA_TX || flag == RT_DEVICE_FLAG_DMA_RX); uart = rt_container_of(serial, struct stm32_uart, serial); if (RT_DEVICE_FLAG_DMA_RX == flag) @@ -925,7 +926,7 @@ static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag) DMA_Handle = &uart->dma_rx.handle; dma_config = uart->config->dma_rx; } - else if (RT_DEVICE_FLAG_DMA_TX == flag) + else /* RT_DEVICE_FLAG_DMA_TX == flag */ { DMA_Handle = &uart->dma_tx.handle; dma_config = uart->config->dma_tx; diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_usart_v2.c b/bsp/stm32/libraries/HAL_Drivers/drv_usart_v2.c index 038129beef..95635fe37b 100644 --- a/bsp/stm32/libraries/HAL_Drivers/drv_usart_v2.c +++ b/bsp/stm32/libraries/HAL_Drivers/drv_usart_v2.c @@ -959,6 +959,7 @@ static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag) struct stm32_uart *uart; RT_ASSERT(serial != RT_NULL); + RT_ASSERT(flag == RT_DEVICE_FLAG_DMA_TX || flag == RT_DEVICE_FLAG_DMA_RX); uart = rt_container_of(serial, struct stm32_uart, serial); if (RT_DEVICE_FLAG_DMA_RX == flag) @@ -966,7 +967,7 @@ static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag) DMA_Handle = &uart->dma_rx.handle; dma_config = uart->config->dma_rx; } - else if (RT_DEVICE_FLAG_DMA_TX == flag) + else /* RT_DEVICE_FLAG_DMA_TX == flag */ { DMA_Handle = &uart->dma_tx.handle; dma_config = uart->config->dma_tx; |