diff options
| author | Ben Greear <greearb@candelatech.com> | 2013-03-19 17:50:50 -0700 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-03-24 11:15:59 +0100 |
| commit | 370bd005937c0e00f9104a602f9fe1dd6b21b54b (patch) | |
| tree | ef81040904a6e55894ead67c0db776aa6fc97fa0 | |
| parent | f9f475292dbb0e7035fb6661d1524761ea0888d9 (diff) | |
| download | linux-370bd005937c0e00f9104a602f9fe1dd6b21b54b.tar.gz linux-370bd005937c0e00f9104a602f9fe1dd6b21b54b.tar.bz2 linux-370bd005937c0e00f9104a602f9fe1dd6b21b54b.zip | |
mac80211: Don't restart sta-timer if not associated.
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.
With the following patch I am unable to reproduce the
crash.
Signed-off-by: Ben Greear <greearb@candelatech.com>
[move check, also make the same change in mesh]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/mesh.c | 3 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 6 |
2 files changed, 6 insertions, 3 deletions
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 29ce2aa87e7b..4749b3858695 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -1060,7 +1060,8 @@ 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_vif_is_mesh(&sdata->vif) && + ieee80211_sdata_running(sdata)) ieee80211_queue_work(&local->hw, &sdata->work); rcu_read_unlock(); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 141577412d84..82cc30318a86 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -3608,8 +3608,10 @@ 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); + list_for_each_entry_rcu(sdata, &local->interfaces, list) { + if (ieee80211_sdata_running(sdata)) + ieee80211_restart_sta_timer(sdata); + } rcu_read_unlock(); } |