diff options
| -rw-r--r-- | net/sched/cls_api.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index ecbb019efcbd..1451a56a8f93 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -197,14 +197,15 @@ static struct tcf_chain *tcf_chain_create(struct tcf_block *block, static void tcf_chain_flush(struct tcf_chain *chain) { - struct tcf_proto *tp; + struct tcf_proto *tp = rtnl_dereference(chain->filter_chain); if (chain->p_filter_chain) RCU_INIT_POINTER(*chain->p_filter_chain, NULL); - while ((tp = rtnl_dereference(chain->filter_chain)) != NULL) { + while (tp) { RCU_INIT_POINTER(chain->filter_chain, tp->next); - tcf_chain_put(chain); tcf_proto_destroy(tp); + tp = rtnl_dereference(chain->filter_chain); + tcf_chain_put(chain); } } |