linux-kernel - Re: [PATCH net v2 2/2] gve: Propagate error codes to caller

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Date:   Thu, 1 Jul 2021 13:33:37 -0700
From:   Catherine Sullivan <csully@...gle.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     Sagi Shahar <sagis@...gle.com>, Jon Olson <jonolson@...gle.com>,
        David Miller <davem@...emloft.net>, kuba@...nel.org,
        David Awogbemila <awogbemila@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Yangchun Fu <yangchun@...gle.com>,
        Bailey Forrest <bcf@...gle.com>, Kuo Zhao <kuozhao@...gle.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net v2 2/2] gve: Propagate error codes to caller

On Thu, Jul 1, 2021 at 1:18 PM Christophe JAILLET
<christophe.jaillet@...adoo.fr> wrote:
>
> If 'gve_probe()' fails, we should propagate the error code, instead of
> hard coding a -ENXIO value.
> Make sure that all error handling paths set a correct value for 'err'.
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Reviewed-by: Catherine Sullivan <csully@...gle.com>

> ---
> v2: Unchanged
>     The previous serie had 3 patches. Now their are only 2
> ---
>  drivers/net/ethernet/google/gve/gve_main.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
> index 44262c9f9ec2..c03984b26db4 100644
> --- a/drivers/net/ethernet/google/gve/gve_main.c
> +++ b/drivers/net/ethernet/google/gve/gve_main.c
> @@ -1469,7 +1469,7 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>
>         err = pci_enable_device(pdev);
>         if (err)
> -               return -ENXIO;
> +               return err;
>
>         err = pci_request_regions(pdev, "gvnic-cfg");
>         if (err)
> @@ -1512,6 +1512,7 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>         dev = alloc_etherdev_mqs(sizeof(*priv), max_tx_queues, max_rx_queues);
>         if (!dev) {
>                 dev_err(&pdev->dev, "could not allocate netdev\n");
> +               err = -ENOMEM;
>                 goto abort_with_db_bar;
>         }
>         SET_NETDEV_DEV(dev, &pdev->dev);
> @@ -1593,7 +1594,7 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>
>  abort_with_enabled:
>         pci_disable_device(pdev);
> -       return -ENXIO;
> +       return err;
>  }
>
>  static void gve_remove(struct pci_dev *pdev)
> --
> 2.30.2
>

Thanks for the fix!