diff mbox series

[v3,06/21] netdev: exit_net cleanup check added

Message ID 21129d9a-bc25-4847-f2d8-8d9981c7be86@virtuozzo.com
State Changes Requested, archived
Delegated to: David Miller
Headers show
Series exit_net checks for objects initialized in net_init hook | expand

Commit Message

Vasily Averin Nov. 6, 2017, 1:24 p.m. UTC 
Be sure that dev_base_head list initialized in net_init hook was return
to initial state

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
---
 net/core/dev.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/net/core/dev.c b/net/core/dev.c
index 588b473..34f88fc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -8562,6 +8562,10 @@  static void __net_exit netdev_exit(struct net *net)
 {
 	kfree(net->dev_name_head);
 	kfree(net->dev_index_head);
+	if (net != &init_net)
+		WARN_ONCE(!list_empty(&net->dev_base_head),
+			  "net %x %s: dev_base_head is not empty\n",
+			  net->ns.inum, __func__);
 }
 
 static struct pernet_operations __net_initdata netdev_net_ops = {