mac80211: mesh hwmp locking fixes

This fixes missing unlocks noticed by sparse.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 9a501aae48eb..c2f40ef418cf 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -264,8 +264,10 @@ static u32 hwmp_route_info_get(struct net_device *dev,
 
         rcu_read_lock();
         sta = sta_info_get(local, mgmt->sa);
-        if (!sta)
+        if (!sta) {
+                rcu_read_unlock();
                 return 0;
+        }
 
         last_hop_metric = airtime_link_metric_get(local, sta);
         /* Update and check originator routing info */
@@ -293,6 +295,7 @@ static u32 hwmp_route_info_get(struct net_device *dev,
                 break;
         default:
                 sta_info_put(sta);
+                rcu_read_unlock();
                 return 0;
         }
         new_metric = orig_metric + last_hop_metric;