linux-kernel - Re: [PATCH net v2 1/2] gve: Fix an error handling path in 'gve

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Message-ID: <CAH_-1qy5uTBMw0ExLVzdOi6GffisPVs1B5xappyu+gA4H6ZGcg@mail.gmail.com>
Date:   Thu, 1 Jul 2021 13:30:57 -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 1/2] gve: Fix an error handling path in 'gve_probe()'

On Thu, Jul 1, 2021 at 1:18 PM Christophe JAILLET
<christophe.jaillet@...adoo.fr> wrote:
>
> If the 'register_netdev() call fails, we must release the resources
> allocated by the previous 'gve_init_priv()' call, as already done in the
> remove function.
>
> Add a new label and the missing 'gve_teardown_priv_resources()' in the
> error handling path.
>
> Fixes: 893ce44df565 ("gve: Add basic driver framework for Compute Engine Virtual NIC")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

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

> ---
> v2: Fix a typo in the label name
>     The previous serie had 3 patches. Now their are only 2
> ---
>  drivers/net/ethernet/google/gve/gve_main.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
> index 867e87af3432..44262c9f9ec2 100644
> --- a/drivers/net/ethernet/google/gve/gve_main.c
> +++ b/drivers/net/ethernet/google/gve/gve_main.c
> @@ -1565,7 +1565,7 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>
>         err = register_netdev(dev);
>         if (err)
> -               goto abort_with_wq;
> +               goto abort_with_gve_init;
>
>         dev_info(&pdev->dev, "GVE version %s\n", gve_version_str);
>         dev_info(&pdev->dev, "GVE queue format %d\n", (int)priv->queue_format);
> @@ -1573,6 +1573,9 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>         queue_work(priv->gve_wq, &priv->service_task);
>         return 0;
>
> +abort_with_gve_init:
> +       gve_teardown_priv_resources(priv);
> +
>  abort_with_wq:
>         destroy_workqueue(priv->gve_wq);
>
> --
> 2.30.2
>

Thanks for the fix!