From: Axel Lin <axel.lin@ingics.com>
Date: Sat, 20 Dec 2014 14:47:07 +0000 (+0800)
Subject: gpio: grgpio: Avoid potential NULL pointer dereference
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~290^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=879828c6ade916d13a5187eb02546899c2cd496c;p=pandora-kernel.git

gpio: grgpio: Avoid potential NULL pointer dereference

irqmap is optional property, so priv->domain can be NULL if !irqmap.
Thus add NULL test for priv->domain before calling irq_domain_remove()
to prevent NULL pointer dereference.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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