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Date: Fri, 4 Jul 2014 10:22:26 +0900 From: Hyogi Gim <hyogi.gim@....com> To: Alessandro Zummo <a.zummo@...ertech.it>, John Stultz <john.stultz@...aro.org> Cc: rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org, Hyogi Gim <hyogi.gim@....com> Subject: [PATCH] drivers/rtc/interface.c: check the error after __rtc_read_time() In __rtc_set_alarm(), the error after __rtc_read_time() is not checked. If rtc device fail to read time, we cannot guarantee the following process. Add the verification code for returned __rtc_read_time() error. Signed-off-by: Hyogi Gim <hyogi.gim@....com> --- drivers/rtc/interface.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 5813fa5..5b2717f 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -348,6 +348,8 @@ static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) /* Make sure we're not setting alarms in the past */ err = __rtc_read_time(rtc, &tm); + if (err) + return err; rtc_tm_to_time(&tm, &now); if (scheduled <= now) return -ETIME; -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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