From: Peng Fan <van.freenix@gmail.com>
Date: Sun, 23 Aug 2015 13:11:52 +0000 (+0800)
Subject: gpio: mxc: need to check return value of irq_alloc_generic_chip
X-Git-Tag: omap-for-v4.3/fixes-rc5~132^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e26b0b114adb321a9bf41520bac304ef49e77d1;p=pandora-kernel.git

gpio: mxc: need to check return value of irq_alloc_generic_chip

Need to check return value of irq_alloc_generic_chip, because
it may return NULL.
1. Change mxc_gpio_init_gc return type from void to int.
2. Add a new lable out_irqdomain_remove to remove the irq domain
   when mxc_gpio_init_gc fail.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
[Manually rebased]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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