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SubjectRe: [PATCH 04/20] pinctrl: Record a pin owner, not mux function, when requesting pins
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On Tue, Feb 21, 2012 at 6:23 PM, Stephen Warren <swarren@nvidia.com> wrote:
> Linus Walleij wrote at Monday, February 20, 2012 2:15 PM:
>> >
>> > -       if (!function) {
>> > -               dev_err(pctldev->dev, "no function name given\n");
>> > -               return -EINVAL;
>> > -       }
>> > -
>>
>> Why should it be allowed to have a NULL owner? There is a
>> debug print involving it above but ... maybe this is over-cautious?
>
> My reasoning was that this is an internal function, so this isn't a user-
> supplied parameter we need to be paranoid about checking, and the places
> that call this function internally "obviously" don't pass NULL owner.
> Well, I suppose one place relies on the fact we checked elsewhere that
> map->dev_name != NULL.
>
> Still, I can see a defensive programming argument for keeping that check,
> although I suspect if we apply that argument we should probably check a
> lot more things too throughout the code?

Bah whatever, no big deal.

Patch applied!

Thanks,
Linus Walleij
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