From 86d7f9f35dcc686d57465798201e678040916979 Mon Sep 17 00:00:00 2001 From: Javier Cardona Date: Tue, 9 Aug 2011 16:45:05 -0700 Subject: [PATCH] mac80211: fix mpath timer NULL function If we have an mpath whose timer has not been initialized, don't try to delete it. Signed-off-by: Javier Cardona Signed-off-by: John W. Linville --- net/mac80211/mesh_pathtbl.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index bd6b8b3e873a..bfd7638e235f 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -619,7 +619,8 @@ static void mesh_path_node_reclaim(struct rcu_head *rp) struct mpath_node *node = container_of(rp, struct mpath_node, rcu); struct ieee80211_sub_if_data *sdata = node->mpath->sdata; - del_timer_sync(&node->mpath->timer); + if (node->mpath->timer.function) + del_timer_sync(&node->mpath->timer); atomic_dec(&sdata->u.mesh.mpaths); kfree(node->mpath); kfree(node); @@ -768,7 +769,8 @@ static void mesh_path_node_free(struct hlist_node *p, bool free_leafs) mpath = node->mpath; hlist_del_rcu(p); if (free_leafs) { - del_timer_sync(&mpath->timer); + if (mpath->timer.function) + del_timer_sync(&mpath->timer); kfree(mpath); } kfree(node); -- 2.20.1