From: Vasily Averin <vvs@virtuozzo.com>
Date: Sun, 12 Nov 2017 19:28:10 +0000 (+0300)
Subject: vxlan: exit_net cleanup checks added
X-Git-Tag: v4.15-rc1~108^2~48
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=0e4ec5acad8b9dde5a42c37ae3499f7d0f230e75;p=linux-block.git

vxlan: exit_net cleanup checks added

Be sure that sock_list array 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/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d7c49cf1d5e9..c02d85651eba 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3704,6 +3704,7 @@ static void __net_exit vxlan_exit_net(struct net *net)
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 	struct vxlan_dev *vxlan, *next;
 	struct net_device *dev, *aux;
+	unsigned int h;
 	LIST_HEAD(list);
 
 	rtnl_lock();
@@ -3723,6 +3724,9 @@ static void __net_exit vxlan_exit_net(struct net *net)
 
 	unregister_netdevice_many(&list);
 	rtnl_unlock();
+
+	for (h = 0; h < PORT_HASH_SIZE; ++h)
+		WARN_ON_ONCE(!hlist_empty(&vn->sock_list[h]));
 }
 
 static struct pernet_operations vxlan_net_ops = {