Allow free() callback to be overridden from irq_domain_ops for hierarchical chips. This allows drivers freeing up resources which are allocated during callbacks for example populate_parent_alloc_arg. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> --- drivers/gpio/gpiolib.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index d1b9b721218f..30aabef37468 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1151,15 +1151,18 @@ static void gpiochip_hierarchy_setup_domain_ops(struct irq_domain_ops *ops) ops->activate = gpiochip_irq_domain_activate; ops->deactivate = gpiochip_irq_domain_deactivate; ops->alloc = gpiochip_hierarchy_irq_domain_alloc; - ops->free = irq_domain_free_irqs_common; /* - * We only allow overriding the translate() function for + * We only allow overriding the translate() and free() function for * hierarchical chips, and this should only be done if the user - * really need something other than 1:1 translation. + * really need something other than 1:1 translation for translate() + * callback and free if user wants to free up any resources which + * were allocated during callbacks for example populate_parent_alloc_arg. */ if (!ops->translate) ops->translate = gpiochip_hierarchy_irq_domain_translate; + if (!ops->free) + ops->free = irq_domain_free_irqs_common; } static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc) -- 2.17.1
