Re: [PATCH] pinctrl: samsung: Fix irq handling if an error occurs in exynos_irq_demux_eint16_31()

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Le 18/11/2024 à 10:40, André Draszik a écrit :
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.

Agreed.


Care to fix that as well?

NP, I'll send a patch.

CJ


That said,

Reviewed-by: André Draszik <andre.draszik@xxxxxxxxxx>


Cheers,
Andre'








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