From: Ben Greear <greearb@candelatech.com>
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 stopped interface
that was about to be deleted. Fix similar problem for
mesh interfaces as well.
Signed-off-by: Ben Greear <greearb@candelatech.com>
---
v4: Fix up mesh as well, add check in calling code instead of
in the methods that mucks iwth the timers.
:100644 100644 67fcfdf... 02e3d75... M net/mac80211/mesh.c
:100644 100644 aec786d... 1d237e9... M net/mac80211/mlme.c
net/mac80211/mesh.c | 3 ++-
net/mac80211/mlme.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 67fcfdf..02e3d75 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -779,7 +779,8 @@ void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list)
- if (ieee80211_vif_is_mesh(&sdata->vif))
+ if (ieee80211_sdata_running(sdata)
+ && ieee80211_vif_is_mesh(&sdata->vif))
ieee80211_queue_work(&local->hw, &sdata->work);
rcu_read_unlock();
}
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index aec786d..1d237e9 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3054,7 +3054,8 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
/* Restart STA timers */
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list)
- ieee80211_restart_sta_timer(sdata);
+ if (ieee80211_sdata_running(sdata))
+ ieee80211_restart_sta_timer(sdata);
rcu_read_unlock();
}
--
1.7.3.4
--
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