From: Krzysztof Helt <krzysztof.h1@wp.pl>
Date: Tue, 7 Jul 2009 20:34:13 +0000 (+0200)
Subject: matroxfb: fix regression with uninitalized fb_info->mm_lock mutex (second head)
X-Git-Tag: v2.6.31-rc3~61
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99f5d48b98fb52db6da379c1b1fd6c87438ee45a;p=pandora-kernel.git

matroxfb: fix regression with uninitalized fb_info->mm_lock mutex (second head)

Remove redundant locking by the mm_lock mutex before a second head of
matrox framebuffer is registered.

This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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