From: Chris Rankin <rankincj@yahoo.com>
Date: Tue, 6 Feb 2007 23:29:07 +0000 (-0300)
Subject: V4L/DVB (5178): Avoid race when deregistering the IR control for dvb-usb
X-Git-Tag: v2.6.21-rc2~66^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e1af498063007cee5d7ec5af1e0cf25c088d05c7;p=pandora-kernel.git

V4L/DVB (5178): Avoid race when deregistering the IR control for dvb-usb

The work item function is dvb_usb_read_remote_control():
        INIT_WORK(&d->rc_query_work, dvb_usb_read_remote_control, d);
and the last piece of work it does is:
        schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc_interval));
Hence you need to call "cancel_rearming_delayed_work()" and not
"cancel_delayed_work()", correct?  I certainly haven't seen this oops
reoccur since I applied this patch.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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