From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 16 Apr 2012 14:16:42 +0000 (+0100)
Subject: drm/i915: Hold mode_config lock whilst changing mode for lastclose()
X-Git-Tag: v3.4-rc4~24^2~7^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c291be9dba370ba696a0d482249a212cf5c15f45;p=pandora-kernel.git

drm/i915: Hold mode_config lock whilst changing mode for lastclose()

Upon lastclose(), we switch back to the fbcon configuration. This
requires taking the mode_config lock in order to serialise the change
with output probing elsewhere.

Reported-by: Oleksij Rempel <bug-track@fisher-privat.net>
References: https://bugs.freedesktop.org/show_bug.cgi?id=48652
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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