geneve: exit_net cleanup check added

Be sure that sock_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>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 5ec39f113127..688906aad19c 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1654,6 +1654,7 @@ static void __net_exit geneve_exit_net(struct net *net)
         /* unregister the devices gathered above */
         unregister_netdevice_many(&list);
         rtnl_unlock();
+        WARN_ON_ONCE(!list_empty(&gn->sock_list));
 }
 
 static struct pernet_operations geneve_net_ops = {