mac80211: Remove mesh paths when an interface is removed

When an interface is removed, the mesh paths associated with it should
also be removed.

This fixes a bug we observed when reloading a device driver module
without reloading mac80211s.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 556e7e6ddf0a..eaa80a3d412b 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1214,6 +1214,9 @@ void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata)
         list_del_rcu(&sdata->list);
         mutex_unlock(&sdata->local->iflist_mtx);
 
+        if (ieee80211_vif_is_mesh(&sdata->vif))
+                mesh_path_flush_by_iface(sdata);
+
         synchronize_rcu();
         unregister_netdevice(sdata->dev);
 }
@@ -1233,6 +1236,9 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
         list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
                 list_del(&sdata->list);
 
+                if (ieee80211_vif_is_mesh(&sdata->vif))
+                        mesh_path_flush_by_iface(sdata);
+
                 unregister_netdevice_queue(sdata->dev, &unreg_list);
         }
         mutex_unlock(&local->iflist_mtx);