Commit 106da663 authored by Nicolas Dichtel's avatar Nicolas Dichtel Committed by David S. Miller

ovs/gre,geneve: fix error path when creating an iface

After ipgre_newlink()/geneve_configure() call, the netdev is registered.

Fixes: 7e059158 ("vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices")
CC: David Wragg <david@weave.works>
Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d1e37288
......@@ -1508,6 +1508,7 @@ struct net_device *geneve_dev_create_fb(struct net *net, const char *name,
{
struct nlattr *tb[IFLA_MAX + 1];
struct net_device *dev;
LIST_HEAD(list_kill);
int err;
memset(tb, 0, sizeof(tb));
......@@ -1519,8 +1520,10 @@ struct net_device *geneve_dev_create_fb(struct net *net, const char *name,
err = geneve_configure(net, dev, &geneve_remote_unspec,
0, 0, 0, 0, htons(dst_port), true,
GENEVE_F_UDP_ZERO_CSUM6_RX);
if (err)
goto err;
if (err) {
free_netdev(dev);
return ERR_PTR(err);
}
/* openvswitch users expect packet sizes to be unrestricted,
* so set the largest MTU we can.
......@@ -1532,7 +1535,8 @@ struct net_device *geneve_dev_create_fb(struct net *net, const char *name,
return dev;
err:
free_netdev(dev);
geneve_dellink(dev, &list_kill);
unregister_netdevice_many(&list_kill);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(geneve_dev_create_fb);
......
......@@ -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);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment