Re: [PATCH v5 2/7] gpio: ep93xx: Fix single irqchip with multi gpiochips

[Nikita Shubin <nikita.shubin@maquefel.me>]

On Tuesday, 9 February 2021 15:46:19 MSK Andy Shevchenko wrote:
>On Tue, Feb 9, 2021 at 2:35 PM Nikita Shubin 
<nikita.shubin@maquefel.me> wrote:
>> On Monday, 8 February 2021 16:20:17 MSK Andy Shevchenko wrote:
>> >On Mon, Feb 8, 2021 at 11:00 AM Nikita Shubin
>> 
>> <nikita.shubin@maquefel.me> wrote:
>...
>
>> >> +static void ep93xx_init_irq_chip(struct device *dev, struct
>> >> irq_chip
>> >> *ic, const char *label) +{
>> >> 
>> >> +       ic->name = devm_kasprintf(dev, GFP_KERNEL, "gpio-irq-%s",
>> >> label);
>> >
>> >Is the label being NULL okay?

You mean ENOMEM should be honored ? I think you are right about it.

>> 
>> The label is taken from ep93xx_gpio_banks[], so unless we explicitly
>> pass zero to ep93xx_init_irq_chip(), we are ok.
>
>Maybe I was unclear, let me rephrase: Is the *resulting* label being
>NULL okay?
>> >> +       ic->irq_ack = ep93xx_gpio_irq_ack;
>> >> +       ic->irq_mask_ack = ep93xx_gpio_irq_mask_ack;
>> >> +       ic->irq_mask = ep93xx_gpio_irq_mask;
>> >> +       ic->irq_unmask = ep93xx_gpio_irq_unmask;
>> >> +       ic->irq_set_type = ep93xx_gpio_irq_type;
>> >> +}