diff options
Diffstat (limited to 'drivers/gpio/gpio-langwell.c')
| -rw-r--r-- | drivers/gpio/gpio-langwell.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c index b0673574dc70..a1c8754f52cf 100644 --- a/drivers/gpio/gpio-langwell.c +++ b/drivers/gpio/gpio-langwell.c @@ -250,11 +250,9 @@ static void lnw_irq_handler(unsigned irq, struct irq_desc *desc) /* check GPIO controller to check which pin triggered the interrupt */ for (base = 0; base < lnw->chip.ngpio; base += 32) { gedr = gpio_reg(&lnw->chip, base, GEDR); - pending = readl(gedr); - while (pending) { + while ((pending = readl(gedr))) { gpio = __ffs(pending); mask = BIT(gpio); - pending &= ~mask; /* Clear before handling so we can't lose an edge */ writel(mask, gedr); generic_handle_irq(irq_find_mapping(lnw->domain, |