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Revert "gpiolib: Fix irq_domain resource tracking for gpiochip_irqchip_add_domain()"

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This reverts commit 0357259cb1 which is
commit ff7a1790fb upstream.

It breaks the Android abi, so revert it for now.  If it needs to come
back, it can be done so in an abi-safe way.

Bug: 161946584
Change-Id: I2147b1495cfc1f7e8758b9c58a24f080be2bec3c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2023-06-30 12:38:04 +00:00
parent a09603eb2f
commit bfa917516c
2 changed files with 1 additions and 10 deletions
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3
drivers/gpio/gpiolib.c
View File

@@ -1650,7 +1650,7 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gc)
} }
/* Remove all IRQ mappings and delete the domain */ /* Remove all IRQ mappings and delete the domain */
if (!gc->irq.domain_is_allocated_externally && gc->irq.domain) { if (gc->irq.domain) {
unsigned int irq; unsigned int irq;
for (offset = 0; offset < gc->ngpio; offset++) { for (offset = 0; offset < gc->ngpio; offset++) {
@@ -1696,7 +1696,6 @@ int gpiochip_irqchip_add_domain(struct gpio_chip *gc,
gc->to_irq = gpiochip_to_irq; gc->to_irq = gpiochip_to_irq;
gc->irq.domain = domain; gc->irq.domain = domain;
gc->irq.domain_is_allocated_externally = true;
/* /*
* Using barrier() here to prevent compiler from reordering * Using barrier() here to prevent compiler from reordering

8
include/linux/gpio/driver.h
View File

@@ -245,14 +245,6 @@ struct gpio_irq_chip {
*/ */
bool initialized; bool initialized;
/**
* @domain_is_allocated_externally:
*
* True it the irq_domain was allocated outside of gpiolib, in which
* case gpiolib won't free the irq_domain itself.
*/
bool domain_is_allocated_externally;
/** /**
* @init_hw: optional routine to initialize hardware before * @init_hw: optional routine to initialize hardware before
* an IRQ chip will be added. This is quite useful when * an IRQ chip will be added. This is quite useful when