From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 21:16:09 +0000 (-0700)
Subject: vxlan: fix out of order operation on module removal
X-Git-Tag: firefly_0821_release~176^2~5751^2~62^2~1^2~18
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b7153984074e51a50dad905871b705e0d67aa147;p=firefly-linux-kernel-4.4.55.git

vxlan: fix out of order operation on module removal

If vxlan is removed with active vxlan's it would crash because
rtnl_link_unregister (which calls vxlan_dellink), was invoked
before unregister_pernet_device (which calls vxlan_stop).

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 284c6c00c353..d3005d3a768d 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1771,8 +1771,8 @@ late_initcall(vxlan_init_module);
 
 static void __exit vxlan_cleanup_module(void)
 {
-	rtnl_link_unregister(&vxlan_link_ops);
 	unregister_pernet_device(&vxlan_net_ops);
+	rtnl_link_unregister(&vxlan_link_ops);
 	rcu_barrier();
 }
 module_exit(vxlan_cleanup_module);