Check whether GPIO IRQ is enabled before proceeding with handling the
interrupt request. The interrupt handler now returns IRQ_NONE if none
of interrupts were handled, which is usually a sign of a problem.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
drivers/gpio/gpio-max77620.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c
index dd83c16a1ec6..8d54bc4307c2 100644
--- a/drivers/gpio/gpio-max77620.c
+++ b/drivers/gpio/gpio-max77620.c
@@ -37,7 +37,9 @@ static irqreturn_t max77620_gpio_irqhandler(int irq, void *data)
return IRQ_NONE;
}
- pending = value;
+ pending = value & gpio->irq_enb_mask;
+ if (!pending)
+ return IRQ_NONE;
for_each_set_bit(offset, &pending, MAX77620_GPIO_NR) {
unsigned int virq;
--
2.26.0
