macvlan: handle set_promiscuity failures

It's quite unlikely that dev_set_promiscuity will fail,
but worth checking just in case.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael S. Tsirkin 2013-08-01 13:50:10 +03:00 committed by David S. Miller
parent 266e83474c
commit 787381415c
1 changed files with 5 additions and 2 deletions

View File

@ -337,8 +337,11 @@ static int macvlan_open(struct net_device *dev)
int err;
if (vlan->port->passthru) {
if (!(vlan->flags & MACVLAN_FLAG_NOPROMISC))
dev_set_promiscuity(lowerdev, 1);
if (!(vlan->flags & MACVLAN_FLAG_NOPROMISC)) {
err = dev_set_promiscuity(lowerdev, 1);
if (err < 0)
goto out;
}
goto hash_add;
}