From: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Thu, 20 Nov 2008 13:30:26 +0000 (-0300)
Subject: V4L/DVB (9668): em28xx: fix a race condition with hald
X-Git-Tag: v2.6.28-rc7~1^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=818a557eeb9c16a9a2dc93df348b0ff68fbc487f;p=pandora-kernel.git

V4L/DVB (9668): em28xx: fix a race condition with hald

Newer versions of hald tries to open it to call QUERYCAP.

Due to the lack of a proper locking, it is possible to open the device
before it finishes initialization.

This patch adds a lock to avoid this risk, and to protect the list of
em28xx devices.

While here, remove the uneeded BKL lock.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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