Interrupt handlers must return one of the irqreturn_t values. Returning a
error code is not supported.
The stk3310 event interrupt handler returns an error code when reading the
flags register fails.
Fix the implementation to always return an irqreturn_t value.
Fixes: 3dd477acbdd1 ("iio: light: Add threshold interrupt support for STK3310")
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/iio/light/stk3310.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 07e91846307c..fc63856ed54d 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -546,9 +546,8 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private)
mutex_lock(&data->lock);
ret = regmap_field_read(data->reg_flag_nf, &dir);
if (ret < 0) {
- dev_err(&data->client->dev, "register read failed\n");
- mutex_unlock(&data->lock);
- return ret;
+ dev_err(&data->client->dev, "register read failed: %d\n", ret);
+ goto out;
}
event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1,
IIO_EV_TYPE_THRESH,
@@ -560,6 +559,7 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private)
ret = regmap_field_write(data->reg_flag_psint, 0);
if (ret < 0)
dev_err(&data->client->dev, "failed to reset interrupts\n");
+out:
mutex_unlock(&data->lock);
return IRQ_HANDLED;
--
2.20.1
