[PATCH 2/2] watchdog: stm32_iwdg: Propagate -EPROBE_DEFER from IRQ lookup

[Bui Duc Phuc]

Hi Guenter,

Thank you for your review.

> > -     if (irq <= 0)
> > +     if (irq == -EPROBE_DEFER)
> > +             return irq;
> > +     if (irq < 0)
> >               return 0;
>
>         if (irq < 0) {
>                 if (irq != -ENXIO)
>                         return irq;
>                 return 0;
>         }
>
> platform_get_irq_optional() does not return 0. and -ENXIO is returned
> if there is no interrupt.

I will send a v2 soon.

Best regards,
Phuc