netdev - Re: [PATCH net-next 1/1] bridge: return error code when deleting Vlan

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Date:   Wed, 11 Oct 2017 19:59:47 -0600
From:   David Ahern <dsahern@...il.com>
To:     Roman Mashak <mrv@...atatu.com>, davem@...emloft.net
Cc:     stephen@...workplumber.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 1/1] bridge: return error code when deleting Vlan

On 10/11/17 3:29 PM, Roman Mashak wrote:
> Signed-off-by: Roman Mashak <mrv@...atatu.com>
> ---
>  net/bridge/br_netlink.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
> index f0e8268..a1e1ca8 100644
> --- a/net/bridge/br_netlink.c
> +++ b/net/bridge/br_netlink.c
> @@ -527,11 +527,11 @@ static int br_vlan_info(struct net_bridge *br, struct net_bridge_port *p,
>  
>  	case RTM_DELLINK:
>  		if (p) {
> -			nbp_vlan_delete(p, vinfo->vid);
> +			err = nbp_vlan_delete(p, vinfo->vid);
>  			if (vinfo->flags & BRIDGE_VLAN_INFO_MASTER)
> -				br_vlan_delete(p->br, vinfo->vid);
> +				err = br_vlan_delete(p->br, vinfo->vid);

err is reset here. What if nbp_vlan_delete fails and br_vlan_delete
succeeds?


>  		} else {
> -			br_vlan_delete(br, vinfo->vid);
> +			err = br_vlan_delete(br, vinfo->vid);
>  		}
>  		break;
>  	}
>