Re: [PATCH] pinctrl: samsung: Fix irq handling if an error occurs in exynos_irq_demux_eint16_31()
From: André Draszik
Date: Mon Nov 18 2024 - 04:40:35 EST
On Sun, 2024-11-17 at 13:03 +0100, Christophe JAILLET wrote:
> chained_irq_enter(() should be paired with a corresponding
> chained_irq_exit().
>
> Here, if clk_enable() fails, a early return occurs and chained_irq_exit()
> is not called.
>
> Add a new label and a goto for fix it.
>
> Fixes: f9c744747973 ("pinctrl: samsung: support a bus clock")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> Compile tested only.
>
> Review with care, irq handling is sometimes tricky...
Well spotted, thanks.
It looks like there is a similar problem in exynos_irq_request_resources()
in same file. It should likely call gpiochip_unlock_as_irq() if clk_enable()
failed.
Care to fix that as well?
That said,
Reviewed-by: André Draszik <andre.draszik@xxxxxxxxxx>
Cheers,
Andre'