platform_get_irq_byname() might return -errno which later would be cast to an unsigned int and used in request_irq(). Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- Not marking as cc-stable as this was not reproduced and not tested. --- drivers/rtc/rtc-da9063.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c index 15908d51b1cb..046b1d4c3dae 100644 --- a/drivers/rtc/rtc-da9063.c +++ b/drivers/rtc/rtc-da9063.c @@ -483,6 +483,9 @@ static int da9063_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->uie_unsupported = 1; irq_alarm = platform_get_irq_byname(pdev, "ALARM"); + if (irq_alarm < 0) + return irq_alarm; + ret = devm_request_threaded_irq(&pdev->dev, irq_alarm, NULL, da9063_alarm_event, IRQF_TRIGGER_LOW | IRQF_ONESHOT, -- 2.17.1
