Re: [PATCH net v3 2/2] net: fec: free the PPS interrupt before tearing down the PHC and netdev

[Bui Duc Phuc]

> +
> +       if (fep->pps_irq >= 0) {
> +               free_irq(fep->pps_irq, ndev);
> +               fep->pps_irq = -1;
> +       }
> +

I think fep->pps_irq > 0 would be more appropriate here,
since the IRQ returned by platform_get_irq_byname_optional() or
platform_get_irq_optional() cannot be 0.