diff mbox series

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

Message ID f17fd3ab-cb9d-d038-3ba4-8af90b4dd2c0@virtuozzo.com
State Superseded, archived
Delegated to: David Miller
Headers show
Series None | expand

Commit Message

Vasily Averin Nov. 5, 2017, 4:51 p.m. UTC 
Be sure that instance_table array initialized in net_init hook
was return to initial state.

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

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)