Subject: Re: [patch net-next 03/16] vlan: add link to upper device

From: Flavio Leitner <[email-masked]>
Date: Mon, 13 Aug 2012 16:04:21 -0300

On Mon, 13 Aug 2012 17:27:02 +0200
Jiri Pirko <[email-masked]> wrote:

> Signed-off-by: Jiri Pirko <[email-masked]>
> ---
>  net/8021q/vlan.c |   10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
> index 9096bcb..739665e 100644
> --- a/net/8021q/vlan.c
> +++ b/net/8021q/vlan.c
> @@ -105,6 +105,8 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
>  	 */
>  	unregister_netdevice_queue(dev, head);
>  
> +	netdev_upper_dev_unlink(real_dev, dev);
> +
>  	if (grp->nr_vlan_devs == 0)
>  		vlan_gvrp_uninit_applicant(real_dev);
>  
> @@ -162,9 +164,13 @@ int register_vlan_dev(struct net_device *dev)
>  	if (err < 0)
>  		goto out_uninit_applicant;
>  
> +	err = netdev_upper_dev_link(real_dev, dev);
> +	if (err)
> +		goto out_uninit_applicant;
> +
>  	err = register_netdevice(dev);
>  	if (err < 0)
> -		goto out_uninit_applicant;
> +		goto out_upper_dev_unlink;
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
see below:

>  
>  	/* Account for reference in struct vlan_dev_priv */
>  	dev_hold(real_dev);
> @@ -180,6 +186,8 @@ int register_vlan_dev(struct net_device *dev)
>  
>  	return 0;
>  
> +upper_dev_unlink:
^^^^^^^^^^^^^^^^^^^
should be out_upper_dev_unlink:

fbl

> +	netdev_upper_dev_unlink(real_dev, dev);
>  out_uninit_applicant:
>  	if (grp->nr_vlan_devs == 0)
>  		vlan_gvrp_uninit_applicant(real_dev);