From: Alex Deucher <alexdeucher@gmail.com>
Date: Mon, 27 Sep 2010 14:57:10 +0000 (-0400)
Subject: drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle
X-Git-Tag: v2.6.36-rc7~23^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e488459a0e131acc9e14df093cfee740bc431953;p=pandora-kernel.git

drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle

radeon_gem_wait_idle_ioctl can apparently get called prior to
the vram page being set up or even if accel if false, so make
sure it's valid before using it.

Should fix:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=597636
https://bugs.freedesktop.org/show_bug.cgi?id=29834

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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