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gpio: vr41xx: Bail out on gpiochip_lock_as_irq() error 

gpiochip_lock_as_irq() may return a few error codes,
bail out if it fails with corresponding returned code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2018-07-30 15:38:37 +03:00 committed by Linus Walleij
parent d124339da7
commit f8ad8aa551
1 changed files with 7 additions and 1 deletions
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8
drivers/gpio/gpio-vr41xx.c
View File

@ -138,10 +138,16 @@ static void unmask_giuint_low(struct irq_data *d)
static unsigned int startup_giuint(struct irq_data *data)
{
if (gpiochip_lock_as_irq(&vr41xx_gpio_chip, data->hwirq))
int ret;
ret = gpiochip_lock_as_irq(&vr41xx_gpio_chip, irqd_to_hwirq(data));
if (ret) {
dev_err(vr41xx_gpio_chip.parent,
"unable to lock HW IRQ %lu for IRQ\n",
data->hwirq);
return ret;
}
/* Satisfy the .enable semantics by unmasking the line */
unmask_giuint_low(data);
return 0;