From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 9 Sep 2010 08:41:32 +0000 (+0100)
Subject: drm: Only decouple the old_fb from the crtc is we call mode_set*
X-Git-Tag: v2.6.36-rc5~31^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=356ad3cd616185631235ffb48b3efbf39f9923b3;p=pandora-kernel.git

drm: Only decouple the old_fb from the crtc is we call mode_set*

Otherwise when disabling the output we switch to the new fb (which is
likely NULL) and skip the call to mode_set -- leaking driver private
state on the old_fb.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857
Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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