From f12c643209db0626f2f54780d86bb93bfa7a9c2d Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Fri, 6 Apr 2018 17:19:41 -0700 Subject: [PATCH] net_sched: fix a missing idr_remove() in u32_delete_key() When we delete a u32 key via u32_delete_key(), we forget to call idr_remove() to remove its handle from IDR. Fixes: e7614370d6f0 ("net_sched: use idr to allocate u32 filter handles") Reported-by: Marcin Kabiesz Tested-by: Marcin Kabiesz Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/sched/cls_u32.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index ed8b6a24b9e9..bac47b5d18fd 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -489,6 +489,7 @@ static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode *key) RCU_INIT_POINTER(*kp, key->next); tcf_unbind_filter(tp, &key->res); + idr_remove(&ht->handle_idr, key->handle); tcf_exts_get_net(&key->exts); call_rcu(&key->rcu, u32_delete_key_freepf_rcu); return 0; -- 2.30.2