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| author | Kangjie Lu <kjlu@umn.edu> | 2018-12-25 20:43:33 -0600 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2019-01-22 19:01:19 +0100 |
| commit | 5910fa0d0d9809c4d8fbf1fb905a8c86fbf2eccb (patch) | |
| tree | 8ea1ba19b57dc4ea23dfc9d34eec158b661278e6 | |
| parent | bbb4383826b20cdc9efbd8ffdd19a5fa58320175 (diff) | |
| download | linux-stable-5910fa0d0d9809c4d8fbf1fb905a8c86fbf2eccb.tar.gz linux-stable-5910fa0d0d9809c4d8fbf1fb905a8c86fbf2eccb.tar.bz2 linux-stable-5910fa0d0d9809c4d8fbf1fb905a8c86fbf2eccb.zip | |
rtc: coh901331: fix a missing check of clk_prepare
clk_prepare() could fail, so let's check its status and if it fails
return its error code upstream.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| -rw-r--r-- | drivers/rtc/rtc-coh901331.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c index fc5cf5c44ae7..0b232c84f674 100644 --- a/drivers/rtc/rtc-coh901331.c +++ b/drivers/rtc/rtc-coh901331.c @@ -235,9 +235,13 @@ static int coh901331_suspend(struct device *dev) static int coh901331_resume(struct device *dev) { + int ret; struct coh901331_port *rtap = dev_get_drvdata(dev); - clk_prepare(rtap->clk); + ret = clk_prepare(rtap->clk); + if (ret) + return ret; + if (device_may_wakeup(dev)) { disable_irq_wake(rtap->irq); } else { |