From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 13 Mar 2007 15:10:52 +0000 (-0400)
Subject: USB: fix race in HCD removal
X-Git-Tag: v2.6.22-rc1~1117^2~61
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b42ae6d4355328dc4406b6f0188adcf8c566435;p=pandora-kernel.git

USB: fix race in HCD removal

This patch (as865) fixes a race in the HCD removal code discovered by
Milan Plzik.  Arrival of an interrupt after the root hub was
unregistered could cause the root-hub status timer to start up, even
after it was supposed to have been shut down.  The problem is fixed by
moving the del_timer_sync() call to after the HCD's stop() method, at
which time IRQ generation should be disabled.

Cc: Milan Plzik <milan.plzik@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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