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ip_tunnel: don't add tunnel twice

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When using command "ip tunnel add" to add a tunnel, the tunnel will be added twice,
through ip_tunnel_create() and ip_tunnel_update().

Because the second is unnecessary, so we can just break after adding tunnel
through ip_tunnel_create().

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Duan Jiong 2014-05-15 13:07:02 +08:00 committed by David S. Miller
parent 9bb1a208fd
commit ee30ef4d45
1 changed files with 2 additions and 4 deletions
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6
net/ipv4/ip_tunnel.c
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@ -754,10 +754,8 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd)
if (!t && (cmd == SIOCADDTUNNEL)) {
t = ip_tunnel_create(net, itn, p);
if (IS_ERR(t)) {
err = PTR_ERR(t);
break;
}
err = PTR_ERR_OR_ZERO(t);
break;
}
if (dev != itn->fb_tunnel_dev && cmd == SIOCCHGTUNNEL) {
if (t != NULL) {