Re: [PATCH] gpio: pca953x: Survive spurious interrupts

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Oct 5, 2020 at 4:02 PM Marc Zyngier <maz@xxxxxxxxxx> wrote:

> The pca953x driver never checks the result of irq_find_mapping(),
> which returns 0 when no mapping is found. When a spurious interrupt
> is delivered (which can happen under obscure circumstances), the
> kernel explodes as it still tries to handle the error code as
> a real interrupt.
>
> Handle this particular case and warn on spurious interrupts.
>
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>

Patch applied for fixes.

Yours,
Linus Walleij