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vlan: Invoke driver vlan hooks only if device is present

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NIC drivers mark device as detached during error recovery.
It expects no manangement hooks to be invoked in this state.
Invoke driver vlan hooks only if device is present.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Padmanabh Ratnakar 2015-11-03 20:25:59 +05:30 committed by David S. Miller
parent 754107e341
commit 74f2d19caf
1 changed files with 8 additions and 2 deletions
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6
net/8021q/vlan_core.c
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@ -206,7 +206,10 @@ static int __vlan_vid_add(struct vlan_info *vlan_info, __be16 proto, u16 vid,
return -ENOMEM;
if (vlan_hw_filter_capable(dev, vid_info)) {
if (netif_device_present(dev))
err = ops->ndo_vlan_rx_add_vid(dev, proto, vid);
else
err = -ENODEV;
if (err) {
kfree(vid_info);
return err;
@ -264,7 +267,10 @@ static void __vlan_vid_del(struct vlan_info *vlan_info,
int err;
if (vlan_hw_filter_capable(dev, vid_info)) {
if (netif_device_present(dev))
err = ops->ndo_vlan_rx_kill_vid(dev, proto, vid);
else
err = -ENODEV;
if (err) {
pr_warn("failed to kill vid %04x/%d for device %s\n",
proto, vid, dev->name);