mac80211: further RCU fixes
There were a few more instances of sta_info_get calls not being
protected by RCU, fix them.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 69aed16..5a45257 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -980,6 +980,8 @@
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta = NULL;
+ rcu_read_lock();
+
if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
sta = sta_info_get(local, sdata->u.sta.bssid);
@@ -996,6 +998,9 @@
wstats->qual.noise = sta->last_noise;
wstats->qual.updated = local->wstats_flags;
}
+
+ rcu_read_unlock();
+
return wstats;
}