From: Hyogi Gim <ciogenis@gmail.com>
Date: Wed, 10 Dec 2014 23:52:27 +0000 (-0800)
Subject: drivers/rtc/interface.c: check the validation of rtc_time in __rtc_read_time
X-Git-Tag: omap-for-v3.19/fixes-rc1~142^2~62
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=16682c86d2fb68cc78c6cc0af51c2a78809dc5b0;p=pandora-kernel.git

drivers/rtc/interface.c: check the validation of rtc_time in __rtc_read_time

Some rtc devices always return '0' when rtc_class_ops.read_time is
called.  So if rtc_time isn't verified in callback, rtc interface cannot
know whether rtc_time is valid.

Check rtc_time by using 'rtc_valid_tm' in '__rtc_read_time'.  And add
the message for debugging.

Signed-off-by: Hyogi Gim <hyogi.gim@lge.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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