libertas: fix cmdpendingq locking
commit86ef111cb2e9961fd92795f9ac5cafbcaf4dcbe1
authorPaul Fox <pgf@laptop.org>
Mon, 9 May 2011 09:40:42 +0000 (9 10:40 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sat, 21 May 2011 22:13:21 +0000 (21 15:13 -0700)
tree2ab8086064f96c0e75a0df59361d80f33696138c
parentcc6267bbbedd8caca5293ad2208dfae76b65a575
libertas: fix cmdpendingq locking

commit 2ae1b8b35faba31a59b153cbad07f9c15de99740 upstream.

We occasionally see list corruption using libertas.

While we haven't been able to diagnose this precisely, we have spotted
a possible cause: cmdpendingq is generally modified with driver_lock
held. However, there are a couple of points where this is not the case.

Fix up those operations to execute under the lock, it seems like
the correct thing to do and will hopefully improve the situation.

Signed-off-by: Paul Fox <pgf@laptop.org>
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/net/wireless/libertas/cmd.c