Re: [PATCH] PCI: stop crashing in pci_release_resource

[Andy Shevchenko]

On Tue, Feb 20, 2018 at 10:58 AM, Christian KÃnig
<ckoenig.leichtzumerken@xxxxxxxxx> wrote:
> Is it entirely possible that the BIOS wasn't able to assign resources to
> a device. In this case don't crash in pci_release_resource() when we try
> to resize the resource.

>         struct resource *res = dev->resource + resno;
>
> +       if (!res->parent)
> +               return;
> +
>         dev_info(&dev->dev, "BAR %d: releasing %pR\n", resno, res);

I would find info message is useful even in such case.

>         release_resource(res);
>         res->end = resource_size(res) - 1;

-- 
With Best Regards,
Andy Shevchenko