Re: [PATCH kernel v4 2/8] genirq/irqdomain: Clean legacy IRQ allocation

[Andy Shevchenko <andy.shevchenko@xxxxxxxxx>]

On Tue, Nov 24, 2020 at 8:20 AM Alexey Kardashevskiy <aik@xxxxxxxxx> wrote:
>
> There are 10 users of __irq_domain_alloc_irqs() and only one - IOAPIC -
> passes realloc==true. There is no obvious reason for handling this
> specific case in the generic code.
>
> This splits out __irq_domain_alloc_irqs_data() to make it clear what
> IOAPIC does and makes __irq_domain_alloc_irqs() cleaner.
>
> This should cause no behavioral change.

> +       ret = __irq_domain_alloc_irqs_data(domain, virq, nr_irqs, node, arg, affinity);
> +       if (ret <= 0)
>                 goto out_free_desc;

Was or wasn't 0 considered as error code previously?

>         return virq;

>  out_free_desc:
>         irq_free_descs(virq, nr_irqs);
>         return ret;

-- 
With Best Regards,
Andy Shevchenko