gpio: bcm-kona: Don't shadow error code of gpiochip_lock_as_irq()

gpiochip_lock_as_irq() may return a few error codes,
do not shadow them by -EINVAL and let caller to decide.

No functional change intended.

Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 00272fa..d0707fc 100644 (file)
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -485,12 +485,14 @@ static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 static int bcm_kona_gpio_irq_reqres(struct irq_data *d)
 {
        struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
+       int ret;
 
-       if (gpiochip_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq)) {
+       ret = gpiochip_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq);
+       if (ret) {
                dev_err(kona_gpio->gpio_chip.parent,
                        "unable to lock HW IRQ %lu for IRQ\n",
                        d->hwirq);
-               return -EINVAL;
+               return ret;
        }
        return 0;
 }