From: David Herrmann <dh.herrmann@googlemail.com>
Date: Wed, 26 Oct 2011 09:13:13 +0000 (+0200)
Subject: Bluetooth: bcm203x: Fix race condition on disconnect
X-Git-Tag: v3.3-rc1~182^2~545^2~134^2~39
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=844e4b76cc4806827024cccf35a9beaf13d27f3d;p=pandora-kernel.git

Bluetooth: bcm203x: Fix race condition on disconnect

When disconnecting a bcm203x device we kill and destroy the usb-urb, however,
there might still be a pending work-structure which resubmits the now invalid
urb. To avoid this race condition, we simply set a shutdown-flag and
synchronously kill the worker first.

This also adds a comment to all schedule_work()s, as it is really not clear
that they are used as replacement for short timers (which can be seen in the git
history).

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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