[PATCH] [31/50] mac80211: Restart STA timers only on associated state

[Andi Kleen]

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>

[ upstream commit 676b58c27475a9defccc025fea1cbd2b141ee539 ]

A panic was observed when the device is failed to resume properly,
and there are no running interfaces. ieee80211_reconfig tries
to restart STA timers on unassociated state.

Cc: stable@xxxxxxxxxx
Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

Index: linux-2.6.35.y/net/mac80211/mlme.c
===================================================================
--- linux-2.6.35.y.orig/net/mac80211/mlme.c
+++ linux-2.6.35.y/net/mac80211/mlme.c
@@ -1995,6 +1995,9 @@ void ieee80211_sta_restart(struct ieee80
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
+	if (!ifmgd->associated)
+		return;
+
 	if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running))
 		add_timer(&ifmgd->timer);
 	if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
--
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