Add error handling process when fail to acquire clk by `devm_clk_get_optional`. Signed-off-by: Zeng Heng <zengheng4@xxxxxxxxxx> --- drivers/tty/serial/8250/8250_bcm2835aux.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/8250/8250_bcm2835aux.c b/drivers/tty/serial/8250/8250_bcm2835aux.c index 15a2387a5b25..1c623e93232c 100644 --- a/drivers/tty/serial/8250/8250_bcm2835aux.c +++ b/drivers/tty/serial/8250/8250_bcm2835aux.c @@ -119,6 +119,8 @@ static int bcm2835aux_serial_probe(struct platform_device *pdev) /* get the clock - this also enables the HW */ data->clk = devm_clk_get_optional(&pdev->dev, NULL); + if (IS_ERR(data->clk)) + return PTR_ERR(data->clk); /* get the interrupt */ ret = platform_get_irq(pdev, 0); -- 2.25.1
