diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 3244e7f6818c..6cfc3bec6749 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -883,6 +883,11 @@ static void stm32_usart_shutdown(struct uart_port *port) u32 val, isr; int ret; + if (stm32_port->tx_dma_busy) { + dmaengine_terminate_async(stm32_port->tx_ch); + stm32_usart_clr_bits(port, ofs->cr3, USART_CR3_DMAT); + } + /* Disable modem control interrupts */ stm32_usart_disable_ms(port); @@ -1570,7 +1575,6 @@ static int stm32_usart_serial_remove(struct platform_device *pdev) writel_relaxed(cr3, port->membase + ofs->cr3); if (stm32_port->tx_ch) { - dmaengine_terminate_async(stm32_port->tx_ch); stm32_usart_of_dma_tx_remove(stm32_port, pdev); dma_release_channel(stm32_port->tx_ch); } |