Sergei Shtylyov <sergei.shtyl...@cogentembedded.com> writes:
> Hello.
>
> On 2/1/2016 1:46 AM, Robert Jarzmik wrote:
>
>> The smc91x driver doesn't honor the probe deferral mechanism when the
>> interrupt source is not yet available, such as one provided by a gpio
>> controller not probed.
> What if 'ndev->irq' does equal 0?
That's not possible AFAIR.
There was a discussion where Linus had stated that the irq is a cookie, and a 0
value is "no interrupt", expcepting for the single case of a PC and its timer
interrupt.
As we're not in that case, and up to my understanding, platform_get_irq() cannot
return a 0 value, only a strictly negative or positive one.
And yet, that test now looks weird to me. I think I'll respin the patch with a
"if (ndev->irq < 0) {" instead of the "if (ndev->irq <= 0) {".
Cheers.
--
Robert
