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vlan: vlan_changelink() should propagate errors

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[ Upstream commit eb8ef2a3c5 ]

Both vlan_dev_change_flags() and vlan_dev_set_egress_priority()
can return an error. vlan_changelink() should not ignore them.

Fixes: 07b5b17e15 ("[VLAN]: Use rtnl_link API")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Dumazet 2020-01-07 01:42:25 -08:00 committed by Greg Kroah-Hartman
parent 196a9a408c
commit 25037e4b19
1 changed files with 7 additions and 3 deletions
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10
net/8021q/vlan_netlink.c
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@ -108,11 +108,13 @@ static int vlan_changelink(struct net_device *dev, struct nlattr *tb[],
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) {
@ -123,7 +125,9 @@ static int vlan_changelink(struct net_device *dev, struct nlattr *tb[],
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;