3.16.83-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Eric Dumazet <edumazet@xxxxxxxxxx> commit eb8ef2a3c50092bb018077c047b8dba1ce0e78e3 upstream. Both vlan_dev_change_flags() and vlan_dev_set_egress_priority() can return an error. vlan_changelink() should not ignore them. Fixes: 07b5b17e157b ("[VLAN]: Use rtnl_link API") Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- net/8021q/vlan_netlink.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) --- a/net/8021q/vlan_netlink.c +++ b/net/8021q/vlan_netlink.c @@ -92,11 +92,13 @@ static int vlan_changelink(struct net_de struct ifla_vlan_flags *flags; struct ifla_vlan_qos_mapping *m; struct nlattr *attr; - int rem; + int rem, err; if (data[IFLA_VLAN_FLAGS]) { flags = nla_data(data[IFLA_VLAN_FLAGS]); - vlan_dev_change_flags(dev, flags->flags, flags->mask); + err = vlan_dev_change_flags(dev, flags->flags, flags->mask); + if (err) + return err; } if (data[IFLA_VLAN_INGRESS_QOS]) { nla_for_each_nested(attr, data[IFLA_VLAN_INGRESS_QOS], rem) { @@ -107,7 +109,9 @@ static int vlan_changelink(struct net_de if (data[IFLA_VLAN_EGRESS_QOS]) { nla_for_each_nested(attr, data[IFLA_VLAN_EGRESS_QOS], rem) { m = nla_data(attr); - vlan_dev_set_egress_priority(dev, m->from, m->to); + err = vlan_dev_set_egress_priority(dev, m->from, m->to); + if (err) + return err; } } return 0;