tunnels: Fix tunnels change rcu protection

[net-next-2.6.git] / net / ipv4 / ip_gre.c

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index d0ffcbe369b76b4a000c5f5e23b6e61dc64fb3dd..01087e035b7d6632f9543d36ebfbf025212fc8a9 100644 (file)
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1072,6 +1072,7 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
                                        break;
                                }
                                ipgre_tunnel_unlink(ign, t);
+                               synchronize_net();
                                t->parms.iph.saddr = p.iph.saddr;
                                t->parms.iph.daddr = p.iph.daddr;
                                t->parms.i_key = p.i_key;