Reset Rx and Tx dma buffers during probe to avoid freeing invalid buffer in no dma mode. Signed-off-by: Erwan Le Ray <erwan.leray@xxxxxxxxxxx> diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index c2ae7b392b86..2ac3b30477a7 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -1168,6 +1168,8 @@ static struct stm32_port *stm32_usart_of_get_port(struct platform_device *pdev) stm32_ports[id].cr1_irq = USART_CR1_RXNEIE; stm32_ports[id].cr3_irq = 0; stm32_ports[id].last_res = RX_BUF_L; + stm32_ports[id].rx_dma_buf = 0; + stm32_ports[id].tx_dma_buf = 0; return &stm32_ports[id]; } -- 2.17.1
