From: Thierry <thierry.merle@free.fr>
Date: Mon, 4 Dec 2006 11:31:17 +0000 (-0300)
Subject: V4L/DVB (4928): Usbvision_v4l2 robustness on disconnect
X-Git-Tag: v2.6.20-rc1~145^2~5^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f7fb877be14da92803f0b5b60955e071ebe2d58;p=pandora-kernel.git

V4L/DVB (4928): Usbvision_v4l2 robustness on disconnect

This patch corrects 2 bugs (causes kernel oops) that occur when
unplugging the peripheral whereas nobody has opened it yet :
- do not call usbvision_stop_isoc if usbvision_init_isoc has not been called
- do not call wakeup_interruptible on waitqueues that did not have been
initialized with init_waitqueue_head

Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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