gpiolib: Replace open coded gpiochip_irqchip_add_allocated_domain()

Replace open coded variant of gpiochip_irqchip_add_allocated_domain()
in gpiochip_add_irqchip().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 0179902..62199ec 100644 (file)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1645,6 +1645,9 @@ static int gpiochip_irqchip_add_allocated_domain(struct gpio_chip *gc,
        if (!domain)
                return -EINVAL;
 
+       if (gc->to_irq)
+               chip_warn(gc, "to_irq is redefined in %s and you shouldn't rely on it\n", __func__);
+
        gc->to_irq = gpiochip_to_irq;
        gc->irq.domain = domain;
        gc->irq.domain_is_allocated_externally = allocated_externally;
@@ -1675,6 +1678,7 @@ static int gpiochip_add_irqchip(struct gpio_chip *gc,
        struct irq_domain *domain;
        unsigned int type;
        unsigned int i;
+       int ret;
 
        if (!irqchip)
                return 0;
@@ -1695,10 +1699,6 @@ static int gpiochip_add_irqchip(struct gpio_chip *gc,
                 "%pfw: Ignoring %u default trigger\n", fwnode, type))
                type = IRQ_TYPE_NONE;
 
-       if (gc->to_irq)
-               chip_warn(gc, "to_irq is redefined in %s and you shouldn't rely on it\n", __func__);
-
-       gc->to_irq = gpiochip_to_irq;
        gc->irq.default_type = type;
        gc->irq.lock_key = lock_key;
        gc->irq.request_key = request_key;
@@ -1711,7 +1711,6 @@ static int gpiochip_add_irqchip(struct gpio_chip *gc,
        }
        if (IS_ERR(domain))
                return PTR_ERR(domain);
-       gc->irq.domain = domain;
 
        if (gc->irq.parent_handler) {
                for (i = 0; i < gc->irq.num_parents; i++) {
@@ -1735,14 +1734,9 @@ static int gpiochip_add_irqchip(struct gpio_chip *gc,
 
        gpiochip_set_irq_hooks(gc);
 
-       /*
-        * Using barrier() here to prevent compiler from reordering
-        * gc->irq.initialized before initialization of above
-        * GPIO chip irq members.
-        */
-       barrier();
-
-       gc->irq.initialized = true;
+       ret = gpiochip_irqchip_add_allocated_domain(gc, domain, false);
+       if (ret)
+               return ret;
 
        acpi_gpiochip_request_interrupts(gc);