linux-kernel - Re: [PATCH v1 1/6] staging: qlge: Initialize devlink health dump framework for the dlge driver

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Message-ID: <CA+FuTSdEK+0nBCd5KAYpbEECmSvjoMEgcEOtM+ZKFF4QQKuAfw@mail.gmail.com>
Date:   Thu, 8 Oct 2020 08:22:44 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     Coiby Xu <coiby.xu@...il.com>
Cc:     devel@...verdev.osuosl.org,
        Benjamin Poirier <benjamin.poirier@...il.com>,
        Shung-Hsi Yu <shung-hsi.yu@...e.com>,
        Manish Chopra <manishc@...vell.com>,
        "supporter:QLOGIC QLGE 10Gb ETHERNET DRIVER" 
        <GR-Linux-NIC-Dev@...vell.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:QLOGIC QLGE 10Gb ETHERNET DRIVER" <netdev@...r.kernel.org>
Subject: Re: [PATCH v1 1/6] staging: qlge: Initialize devlink health dump
 framework for the dlge driver

On Thu, Oct 8, 2020 at 7:58 AM Coiby Xu <coiby.xu@...il.com> wrote:
>
> Initialize devlink health dump framework for the dlge driver so the
> coredump could be done via devlink.
>
> Signed-off-by: Coiby Xu <coiby.xu@...il.com>

> @@ -4556,6 +4559,13 @@ static int qlge_probe(struct pci_dev *pdev,
>         struct ql_adapter *qdev = NULL;
>         static int cards_found;
>         int err = 0;
> +       struct devlink *devlink;
> +       struct qlge_devlink *ql_devlink;
> +
> +       devlink = devlink_alloc(&qlge_devlink_ops, sizeof(struct qlge_devlink));
> +       if (!devlink)
> +               return -ENOMEM;
> +       ql_devlink = devlink_priv(devlink);
>
>         ndev = alloc_etherdev_mq(sizeof(struct ql_adapter),
>                                  min(MAX_CPUS,

need to goto devlink_free instead of return -ENOMEM here, too.

> @@ -4614,6 +4624,16 @@ static int qlge_probe(struct pci_dev *pdev,
>                 free_netdev(ndev);
>                 return err;

and here

>         }
> +
> +       err = devlink_register(devlink, &pdev->dev);
> +       if (err) {
> +               goto devlink_free;
> +       }
> +
> +       qlge_health_create_reporters(ql_devlink);
> +       ql_devlink->qdev = qdev;
> +       ql_devlink->ndev = ndev;
> +       qdev->ql_devlink = ql_devlink;
>         /* Start up the timer to trigger EEH if
>          * the bus goes dead
>          */
> @@ -4624,6 +4644,10 @@ static int qlge_probe(struct pci_dev *pdev,
>         atomic_set(&qdev->lb_count, 0);
>         cards_found++;
>         return 0;
> +
> +devlink_free:
> +       devlink_free(devlink);
> +       return err;
>  }