Re: [PATCH] gpiolib: Fix irq_domain resource tracking for gpiochip_irqchip_add_domain()

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Am 2023-06-16 16:13, schrieb Andy Shevchenko:
On Fri, Jun 16, 2023 at 09:30:06AM +0200, Michael Walle wrote:
Up until commit 6a45b0e2589f ("gpiolib: Introduce
gpiochip_irqchip_add_domain()") all irq_domains were allocated
by gpiolib itself and thus gpiolib also takes care of freeing it.

With gpiochip_irqchip_add_domain() a user of gpiolib can associate an
irq_domain with the gpio_chip. This irq_domain is not managed by
gpiolib and therefore must not be freed by gpiolib.

With or without below nit-pick
Reviewed-by: Andy Shevchenko <andy@xxxxxxxxxx>

...

 	/* Remove all IRQ mappings and delete the domain */
-	if (gc->irq.domain) {
+	if (!gc->irq.domain_is_ext && gc->irq.domain) {

Looking at this, perhaps positive about allocation?

	domain_is_allocated?

I mean all domains are allocated ;)

domain_is_allocated_externally? I'm bad with short and concise
names..

-michael



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