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

[Alexey Kardashevskiy]

On 11/24/20 8:19 PM, Andy Shevchenko wrote:
> On Tue, Nov 24, 2020 at 8:20 AM Alexey Kardashevskiy <aik at ozlabs.ru> 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?

Oh. I need to clean this up, the idea is since this does not allocate 
IRQs, this should return error code and not an irq, I'll make this explicit.

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

-- 
Alexey