> -----Original Message-----
> From: Ursula Braun [mailto:[email protected]]
> Sent: Wednesday, October 11, 2017 6:47 AM
> To: [email protected]
> Cc: [email protected]; [email protected]; linux-
> [email protected]; [email protected]; [email protected];
> [email protected]; [email protected];
> [email protected]; Parav Pandit <[email protected]>
> Subject: [PATCH v2 net 2/2] net/smc: dev_put for netdev after usage of
> ib_query_gid()
> 
> For RoCEs ib_query_gid() takes a reference count on the net_device.
> This reference count must be decreased by the caller.
> 
> Signed-off-by: Ursula Braun <[email protected]>
> Reported-by: Parav Pandit <[email protected]>
> Reviewed-by: Parav Pandit <[email protected]>
> Fixes: 0cfdd8f92cac ("smc: connection and link group creation")
> ---
>  net/smc/smc_core.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index
> 20b66e79c5d6..5f6a20084157 100644
> --- a/net/smc/smc_core.c
> +++ b/net/smc/smc_core.c
> @@ -380,10 +380,14 @@ static int smc_link_determine_gid(struct
> smc_link_group *lgr)
>               if (ib_query_gid(lnk->smcibdev->ibdev, lnk->ibport, i, &gid,
>                                &gattr))
>                       continue;
> -             if (gattr.ndev &&
> -                 (vlan_dev_vlan_id(gattr.ndev) == lgr->vlan_id)) {
> -                     lnk->gid = gid;
> -                     return 0;
> +             if (gattr.ndev) {
> +                     if (is_vlan_dev(gattr.ndev) &&
> +                         vlan_dev_vlan_id(gattr.ndev) == lgr->vlan_id) {
> +                             lnk->gid = gid;
> +                             dev_put(gattr.ndev);
> +                             return 0;
> +                     }
> +                     dev_put(gattr.ndev);
>               }
>       }
>       return -ENODEV;
> --
> 2.13.5

Looks fine now.

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