gpio: em: 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.

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

diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index 2b466b8..982e699 100644 (file)
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -101,12 +101,14 @@ static void em_gio_irq_enable(struct irq_data *d)
 static int em_gio_irq_reqres(struct irq_data *d)
 {
        struct em_gio_priv *p = irq_data_get_irq_chip_data(d);
+       int ret;
 
-       if (gpiochip_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d))) {
+       ret = gpiochip_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d));
+       if (ret) {
                dev_err(p->gpio_chip.parent,
                        "unable to lock HW IRQ %lu for IRQ\n",
                        irqd_to_hwirq(d));
-               return -EINVAL;
+               return ret;
        }
        return 0;
 }