From: Li RongQing <lirongqing@baidu.com>
Date: Thu, 20 Jun 2019 11:24:40 +0000 (+0800)
Subject: netns: restore ops before calling ops_exit_list
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b272a0ad730103e84fb735fd0a8cc050cdf7f77c;p=linux.git

netns: restore ops before calling ops_exit_list

ops has been iterated to first element when call pre_exit, and
it needs to restore from save_ops, not save ops to save_ops

Fixes: d7d99872c144 ("netns: add pre_exit method to struct pernet_operations")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 89dc99a28978f..198ce503ae73d 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -345,7 +345,7 @@ out_undo:
 
 	synchronize_rcu();
 
-	saved_ops = ops;
+	ops = saved_ops;
 	list_for_each_entry_continue_reverse(ops, &pernet_list, list)
 		ops_exit_list(ops, &net_exit_list);