Re: [PATCH][net-next] net: bridge: remove redundant check to see if err is set

From: Colin Ian King
Date: Tue Feb 07 2017 - 06:45:28 EST


..and one more thing, in net/bridge/br_netlink_tunnel.c,
__get_num_vlan_tunnel_infos, are the args to vlan_tunnel_id_isrange()
the wrong way around? I'm not 100% sure, but I'd thought I'd flag it up.


if (v_start) {
if ((v_end->vid - v->vid) > 0 &&
vlan_tunnel_id_isrange(v_end, v) > 0)
num_tinfos += 2;
else
num_tinfos += 1;
}



On 07/02/17 11:30, Nikolay Aleksandrov wrote:
> On 07/02/17 11:56, Colin King wrote:
>> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>>
>> The error check on err is redundant as it is being checked
>> previously each time it has been updated. Remove this redundant
>> check.
>>
>> Detected with CoverityScan, CID#140030("Logically dead code")
>>
>> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>> ---
>> net/bridge/br_netlink.c | 3 ---
>> 1 file changed, 3 deletions(-)
>>
>> diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
>> index fc5d885..cdc4e2a 100644
>> --- a/net/bridge/br_netlink.c
>> +++ b/net/bridge/br_netlink.c
>> @@ -612,9 +612,6 @@ static int br_afspec(struct net_bridge *br,
>> return err;
>> break;
>> }
>> -
>> - if (err)
>> - return err;
>> }
>>
>> return err;
>>
>
> Actually that code can be reduced further, I'll follow up with a patch later.
>
> Reviewed-by: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
>
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