commit 568a153a22d8f338a5ebda70e6bd139f6d8bb2c3
author WANG Cong <xiyou.wangcong@gmail.com> Fri Dec 20 00:08:51 2013 -0800
committer David S. Miller <davem@davemloft.net> Fri Dec 20 17:06:27 2013 -0500
tree 944006c1defc9335807ae15c30c466b5fb3f681f
parent 852ad5e631967ae2203cb08c5b6b42c26011ed63

net_sched: fix a regression in tc actions

This patch fixes:
1) pass mask rather than size to tcf_hashinfo_init()
2) the cleanup should be in reversed order in mirred_cleanup_module()

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Fixes: 369ba56787d7469c0afd ("net_sched: init struct tcf_hashinfo at register time")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/act_mirred.c

diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 199fc98..9dbb8cd 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -276,7 +276,7 @@
 	if (err)
 		return err;
 
-	err = tcf_hashinfo_init(&mirred_hash_info, MIRRED_TAB_MASK+1);
+	err = tcf_hashinfo_init(&mirred_hash_info, MIRRED_TAB_MASK);
 	if (err) {
 		unregister_netdevice_notifier(&mirred_device_notifier);
 		return err;
@@ -287,9 +287,9 @@
 
 static void __exit mirred_cleanup_module(void)
 {
-	unregister_netdevice_notifier(&mirred_device_notifier);
-	tcf_hashinfo_destroy(&mirred_hash_info);
 	tcf_unregister_action(&act_mirred_ops);
+	tcf_hashinfo_destroy(&mirred_hash_info);
+	unregister_netdevice_notifier(&mirred_device_notifier);
 }
 
 module_init(mirred_init_module);