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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2016-06-13 10:31:04 +0200
committerDavid S. Miller <davem@davemloft.net>2016-06-14 22:21:44 -0700
commit106da663ff495e0aea3ac15b8317aa410754fcac (patch)
treec01437e026a5475c737599a67cccefaae45f2b56 /net
parentd1e37288c9146dccff830e3253e403af8705b51f (diff)
downloadlinux-106da663ff495e0aea3ac15b8317aa410754fcac.tar.bz2
ovs/gre,geneve: fix error path when creating an iface
After ipgre_newlink()/geneve_configure() call, the netdev is registered. Fixes: 7e059158d57b ("vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices") CC: David Wragg <david@weave.works> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/ip_gre.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 4d2025f7ec57..08deba679c8c 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -1121,6 +1121,7 @@ struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
{
struct nlattr *tb[IFLA_MAX + 1];
struct net_device *dev;
+ LIST_HEAD(list_kill);
struct ip_tunnel *t;
int err;
@@ -1136,8 +1137,10 @@ struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
t->collect_md = true;
err = ipgre_newlink(net, dev, tb, NULL);
- if (err < 0)
- goto out;
+ if (err < 0) {
+ free_netdev(dev);
+ return ERR_PTR(err);
+ }
/* openvswitch users expect packet sizes to be unrestricted,
* so set the largest MTU we can.
@@ -1148,7 +1151,8 @@ struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
return dev;
out:
- free_netdev(dev);
+ ip_tunnel_dellink(dev, &list_kill);
+ unregister_netdevice_many(&list_kill);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(gretap_fb_dev_create);