From: Bruno Prémont <bonbons@linux-vserver.org>
Date: Fri, 2 Sep 2011 17:24:03 +0000 (+0200)
Subject: fb: sh-mobile: Fix deadlock risk between lock_fb_info() and console_lock()
X-Git-Tag: v3.2-rc1~120^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a47a0e09c504e3ce0ccdb405411aefc5b09deb8;p=pandora-kernel.git

fb: sh-mobile: Fix deadlock risk between lock_fb_info() and console_lock()

Following on Herton's patch "fb: avoid possible deadlock caused by
fb_set_suspend" which moves lock_fb_info() out of fb_set_suspend()
to its callers, correct sh-mobile's locking around call to
fb_set_suspend() and the same sort of deaklocks with console_lock()
due to order of taking the lock.

console_lock() must be taken while fb_info is already locked and fb_info
must be locked while calling fb_set_suspend().

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@kernel.org
---

Reading git-diff-tree failed