netdev: exit_net cleanup check added

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>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index 30b5fe32c525693cef1aa6c446ca9e9ee36456c0..658337bf33e437773ef81359746068043481b579 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -8667,6 +8667,8 @@ static void __net_exit netdev_exit(struct net *net)
 {
        kfree(net->dev_name_head);
        kfree(net->dev_index_head);
+       if (net != &init_net)
+               WARN_ON_ONCE(!list_empty(&net->dev_base_head));
 }
 
 static struct pernet_operations __net_initdata netdev_net_ops = {