diff options
Diffstat (limited to 'drivers/tty/serial/stm32-usart.c')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 2fca2d2a83cc..688afc4fb714 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -678,8 +678,10 @@ static int stm32_init_port(struct stm32_port *stm32port, return ret; stm32port->port.uartclk = clk_get_rate(stm32port->clk); - if (!stm32port->port.uartclk) + if (!stm32port->port.uartclk) { + clk_disable_unprepare(stm32port->clk); ret = -EINVAL; + } return ret; } @@ -865,7 +867,7 @@ static int stm32_serial_probe(struct platform_device *pdev) ret = uart_add_one_port(&stm32_usart_driver, &stm32port->port); if (ret) - return ret; + goto err_uninit; ret = stm32_of_dma_rx_probe(stm32port, pdev); if (ret) @@ -878,6 +880,11 @@ static int stm32_serial_probe(struct platform_device *pdev) platform_set_drvdata(pdev, &stm32port->port); return 0; + +err_uninit: + clk_disable_unprepare(stm32port->clk); + + return ret; } static int stm32_serial_remove(struct platform_device *pdev) |