[PATCH v2 15/21] nfnetlink_gueue: exit_net cleanup check added

[Vasily Averin]

Be sure that instance_table array initialized in net_init hook
was return to initial state.

Signed-off-by: Vasily Averin <v...@virtuozzo.com>
---
 net/netfilter/nfnetlink_queue.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index c979662..0fa56d9 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1512,10 +1512,17 @@ static int __net_init nfnl_queue_net_init(struct net 
*net)
 
 static void __net_exit nfnl_queue_net_exit(struct net *net)
 {
+       unsigned int i;
+       struct nfnl_queue_net *q = nfnl_queue_pernet(net);
+
        nf_unregister_queue_handler(net);
 #ifdef CONFIG_PROC_FS
        remove_proc_entry("nfnetlink_queue", net->nf.proc_netfilter);
 #endif
+       for (i = 0; i < INSTANCE_BUCKETS; i++)
+               if (WARN(!hlist_empty(&q->instance_table[i]),
+                        "%s: instance_table isn't empty\n", __func__))
+                       break;
 }
 
 static void nfnl_queue_net_exit_batch(struct list_head *net_exit_list)
-- 
2.7.4