From: Arik Nemtsov <arik@wizery.com>
Date: Mon, 5 Nov 2012 08:27:52 +0000 (+0200)
Subject: mac80211: sync acccess to tx_filtered/ps_tx_buf queues
X-Git-Tag: v3.2.35~86
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3686bdea72e26803d29be3e67cd11f18a97b246a;p=pandora-kernel.git

mac80211: sync acccess to tx_filtered/ps_tx_buf queues

commit 987c285c2ae2e4e32aca3a9b3252d28171c75711 upstream.

These are accessed without a lock when ending STA PSM. If the
sta_cleanup timer accesses these lists at the same time, we might crash.

This may fix some mysterious crashes we had during
ieee80211_sta_ps_deliver_wakeup.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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