From: Krzysztof Helt <krzysztof.h1@wp.pl>
Date: Sun, 19 Oct 2008 03:27:51 +0000 (-0700)
Subject: fb: convert lock/unlock_kernel() into local fb mutex
X-Git-Tag: v2.6.28-rc1~167
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3e680aae4e53ab54cdbb0c29257dae0cbb158e1c;p=pandora-kernel.git

fb: convert lock/unlock_kernel() into local fb mutex

Change lock_kernel()/unlock_kernel() to local fb mutex.  Each frame buffer
instance has its own mutex.

The one line try_to_load() function is unrolled to request_module() in two
places for readability.

[righi.andrea@gmail.com: fb: fix NULL pointer BUG dereference in fb_open()]
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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