From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
I found another crash when deleting lots of virtual stations
in a congested environment. I think the problem is that
the ieee80211_mlme_notify_scan_completed could call
ieee80211_restart_sta_timer for a non-associated interface
that was about to be deleted.
With the following patch I am unable to reproduce the
crash.
Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
---
:100644 100644 81e0619... a1cc8c4... M net/mac80211/mlme.c
net/mac80211/mlme.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 81e0619..a1cc8c4 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2931,6 +2931,9 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
u32 flags;
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ if (unlikely(!sdata->u.mgd.associated))
+ return;
+
__ieee80211_stop_poll(sdata);
/* let's probe the connection once */
--
1.7.3.4
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