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| author | Krzysztof Kozlowski <krzk@kernel.org> | 2019-10-04 18:05:10 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2019-10-07 16:49:18 +0300 |
| commit | 7da83f1bba0e4b70af2d292e099bec6092b37217 (patch) | |
| tree | 0069d58ae6c4392597b9d9a5bbff815e6b6715d2 /drivers/rtc/rtc-da9063.c | |
| parent | cf79e7c3c9e9ea820d8795329fb888ec4e3ae4d0 (diff) | |
| download | linux-7da83f1bba0e4b70af2d292e099bec6092b37217.tar.xz | |
rtc: da9063: Handle invalid IRQ from platform_get_irq_byname()
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@kernel.org>
Tested-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191004150510.6278-1-krzk@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-da9063.c')
| -rw-r--r-- | drivers/rtc/rtc-da9063.c | 3 |
1 files changed, 3 insertions, 0 deletions
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, |