From cd1420d3a90944e677987ca8c56f1cd22ecd1b51 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 12 May 2015 23:27:02 +0200
Subject: [PATCH] rtc: pfc8563: fix uninitialized variable warning

Gcc is unable to prove that alm_pending is always initialized
when it is used, so it prints a harmless warning:

drivers/rtc/rtc-pcf8563.c: In function 'pcf8563_probe':
drivers/rtc/rtc-pcf8563.c:449:5: warning: 'alm_pending' may be used uninitialized in this function [-Wmaybe-uninitialized]

This uses the same conditional expression that is used inside of
the pcf8563_get_alarm_mode() function, to help gcc figure it out
and shut up that warning, and make the ARM defconfigs build again
with no warnings.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a45d528aab8b ("rtc: pcf8563: clear expired alarm at boot time")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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