From f2ffff085d287eec499f1fccd682796ad8010303 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 18 Feb 2019 11:29:29 +0100 Subject: [PATCH] mac80211: mesh: fix missing unlock on error in table_path_del() spin_lock_bh() is used in table_path_del() but rcu_read_unlock() is used for unlocking. Fix it by using spin_unlock_bh() instead of rcu_read_unlock() in the error handling case. Fixes: b4c3fbe63601 ("mac80211: Use linked list instead of rhashtable walk for mesh tables") Acked-by: Herbert Xu Signed-off-by: Wei Yongjun Signed-off-by: Johannes Berg Signed-off-by: David S. Miller --- net/mac80211/mesh_pathtbl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index c3a7396..88a6d5e 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -627,7 +627,7 @@ static int table_path_del(struct mesh_table *tbl, spin_lock_bh(&tbl->walk_lock); mpath = rhashtable_lookup_fast(&tbl->rhead, addr, mesh_rht_params); if (!mpath) { - rcu_read_unlock(); + spin_unlock_bh(&tbl->walk_lock); return -ENXIO; } -- 2.7.4