From: Karsten Keil <kkeil@suse.de>
Date: Thu, 18 Oct 2007 10:04:31 +0000 (-0700)
Subject: i4l: fix random freezes with AVM B1 drivers
X-Git-Tag: v2.6.24-rc1~448
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9713d9e650045f7f2afd81d58a068827be306993;p=pandora-kernel.git

i4l: fix random freezes with AVM B1 drivers

This fix the same issue which was debbuged for the C4 controller for the B1
versions.

The capilib_ function modify or traverse a linked list without locking.

This patch extends the existing locking to the calls of these function to
prevent access to a list which is in the middle of a modification.

Signed-off-by: Karsten Keil <kkeil@suse.de>
C: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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