From: Joonyoung Shim <jy0922.shim@samsung.com>
Date: Thu, 4 Aug 2011 05:41:01 +0000 (+0000)
Subject: drm: Add NULL check about irq functions
X-Git-Tag: v3.1-rc1~22^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5037f8acf448dd0de9868dc7410f45879d3d1a1b;p=pandora-kernel.git

drm: Add NULL check about irq functions

The struct drm_driver has some function pointers for irq. They are
gpu specific and some functions aren't essential things. This can
prevents creation of unnecessary dummy function for irq.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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