[035/102] mac80211: Restart STA timers only on associated state

[Greg KH]

3.0-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>

commit 676b58c27475a9defccc025fea1cbd2b141ee539 upstream.

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.

Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 net/mac80211/mlme.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2200,6 +2200,9 @@ 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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