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Merge pull request #3516 from yangjie11/yj_dev

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[components][serial]关闭uart时，反初始化tx_dma->data_queue，防止内存泄漏
This commit is contained in:
Bernard Xiong
2020-04-10 20:13:05 +08:00
committed by GitHub
parent 6375094569 cb9bc38ec9
commit 446091fc10
1 changed files with 2 additions and 0 deletions
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components/drivers/serial/serial.c
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@@ -785,6 +785,8 @@ static rt_err_t rt_serial_close(struct rt_device *dev)
tx_dma = (struct rt_serial_tx_dma*)serial->serial_tx;
RT_ASSERT(tx_dma != RT_NULL);
rt_data_queue_deinit(&(tx_dma->data_queue));
rt_free(tx_dma);
serial->serial_tx = RT_NULL;
dev->open_flag &= ~RT_DEVICE_FLAG_DMA_TX;