diff options
| -rw-r--r-- | drivers/gpio/gpiolib.c | 3 | ||||
| -rw-r--r-- | include/linux/gpio/driver.h | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 9ecf93cbd801..5be8ad61523e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1745,7 +1745,7 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gc) } /* Remove all IRQ mappings and delete the domain */ - if (gc->irq.domain) { + if (!gc->irq.domain_is_allocated_externally && gc->irq.domain) { unsigned int irq; for (offset = 0; offset < gc->ngpio; offset++) { @@ -1791,6 +1791,7 @@ int gpiochip_irqchip_add_domain(struct gpio_chip *gc, gc->to_irq = gpiochip_to_irq; gc->irq.domain = domain; + gc->irq.domain_is_allocated_externally = true; /* * Using barrier() here to prevent compiler from reordering diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 5c6db5533be6..67b8774eed8f 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -252,6 +252,14 @@ struct gpio_irq_chip { 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 * an IRQ chip will be added. This is quite useful when * a particular driver wants to clear IRQ related registers |