[PATCH] pinctrl: stm32: fix optional IRQ support to gpios

[Linus Walleij]

On Mon, Jun 27, 2022 at 4:24 PM Fabien Dessenne
<fabien.dessenne at foss.st.com> wrote:

> To act as an interrupt controller, a gpio bank relies on the
> "interrupt-parent" of the pin controller.
> When this optional "interrupt-parent" misses, do not create any IRQ domain.
>
> This fixes a "NULL pointer in stm32_gpio_domain_alloc()" kernel crash when
> the interrupt-parent = <exti> property is not declared in the Device Tree.
>
> Fixes: 0eb9f683336d ("pinctrl: Add IRQ support to STM32 gpios")
>
> Signed-off-by: Fabien Dessenne <fabien.dessenne at foss.st.com>

Patch applied for fixes.

Yours,
Linus Walleij