From ca6dc2dab97133b874c2f6a76b6125497b67b429 Mon Sep 17 00:00:00 2001
From: Hyogi Gim <hyogi.gim@lge.com>
Date: Fri, 8 Aug 2014 14:20:11 -0700
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@lge.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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