net: use synchronize_net() in dev_change_name()

dev_change_name() holds RTNL, we better use synchronize_net()
instead of plain synchronize_rcu().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index 31f2c97d19903a7b4ce92292dd53486c0043cd1b..7cf15d2bf78def778c397416bfe730434c3cc093 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1239,7 +1239,7 @@ rollback:
        netdev_name_node_del(dev->name_node);
        write_unlock(&dev_base_lock);
 
-       synchronize_rcu();
+       synchronize_net();
 
        write_lock(&dev_base_lock);
        netdev_name_node_add(net, dev->name_node);