diff options
| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2016-06-13 10:31:04 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-10 10:25:53 +0200 |
| commit | 96edfba59c27f0454ac6da080245dff1d996e986 (patch) | |
| tree | 87decec523edd884f3f092702d587b163dbd9667 | |
| parent | e01128e3cef06652fe39797cc24bb5b3c90bbf5d (diff) | |
ovs/gre,geneve: fix error path when creating an iface
commit 106da663ff495e0aea3ac15b8317aa410754fcac upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/geneve.c | 10 | ||||
| -rw-r--r-- | net/ipv4/ip_gre.c | 10 |
2 files changed, 14 insertions, 6 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index f0961cbaf87e..ec6218ab8137 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -1340,6 +1340,7 @@ 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)); @@ -1350,8 +1351,10 @@ struct net_device *geneve_dev_create_fb(struct net *net, const char *name, err = geneve_configure(net, dev, &geneve_remote_unspec, 0, 0, 0, htons(dst_port), true); - 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. @@ -1363,7 +1366,8 @@ 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); diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 3e4184088082..7ccde7e53fc1 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -1230,6 +1230,7 @@ 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; @@ -1245,8 +1246,10 @@ 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. @@ -1257,7 +1260,8 @@ 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); |