Re: [PATCH hyperv-next v5 08/11] Drivers: hv: vmbus: Get the IRQ number from DeviceTree

[Roman Kisel]

On 3/13/2025 11:44 AM, Rob Herring wrote:
> On Fri, Mar 7, 2025 at 4:03 PM Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx> wrote:

[...]

> > +       irq = platform_get_irq(pdev, 0);
> > +       if (irq == 0) {
> > +               pr_err("VMBus interrupt mapping failure\n");
> > +               return -EINVAL;
> > +       }
> > +       if (irq < 0) {
> > +               pr_err("VMBus interrupt data can't be read from DeviceTree, error %d\n", irq);
> > +               return irq;
> > +       }
>
> I don't think why you couldn't get the interrupt is important. Just
> check for (irq <= 0) and be done with it. I'm not even sure if
> returning 0 is possible now. There's a long history to that and
> NO_IRQ.

That will certainly make the code look much better!
Thank you very much for the idea!

> Rob

--
Thank you,
Roman