mac80211: fix spinlock recursion on sta expiration

Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 3 insertions, 2 deletions

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index b836948a0b40..152682d4bb1a 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -3079,7 +3079,7 @@ static void ieee80211_sta_expire(struct net_device *dev, unsigned long exp_time)
                 if (time_after(jiffies, sta->last_rx + exp_time)) {
                         printk(KERN_DEBUG "%s: expiring inactive STA %s\n",
                                dev->name, print_mac(mac, sta->addr));
-                        sta_info_unlink(&sta);
+                        __sta_info_unlink(&sta);
                         if (sta)
                                 list_add(&sta->list, &tmp_list);
                 }
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index f5c65e891288..7e1e87257647 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -454,7 +454,7 @@ static struct sta_info *__sta_info_unpin(struct sta_info *sta)
         return ret;
 }
 
-static void __sta_info_unlink(struct sta_info **sta)
+void __sta_info_unlink(struct sta_info **sta)
 {
         struct ieee80211_local *local = (*sta)->local;
         struct ieee80211_sub_if_data *sdata = (*sta)->sdata;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index b09861eb124e..ebb7b2b4d0b9 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -347,6 +347,7 @@ int sta_info_insert(struct sta_info *sta);
  * has already unlinked it.
  */
 void sta_info_unlink(struct sta_info **sta);
+void __sta_info_unlink(struct sta_info **sta);
 
 void sta_info_destroy(struct sta_info *sta);
 void sta_info_set_tim_bit(struct sta_info *sta);