From: Archit Taneja <architt@codeaurora.org>
Date: Fri, 26 Jun 2015 10:19:43 +0000 (+0530)
Subject: drm/msm: mdp4: Fix drm_framebuffer dereference crash
X-Git-Tag: omap-for-v4.3/fixes-merge-window~163^2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1c3e3e01ee301de6a13e696ef8775f40ca339ac;p=pandora-kernel.git

drm/msm: mdp4: Fix drm_framebuffer dereference crash

mdp4_get_frame_format() can dereference a drm_framebuffer when it's NULL.
Call it in mdp4_plane_mode_set only when we know fb is non-NULL.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
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