iio: mma8452: Use correct type for return variable in IRQ handler

The IRQ handler's return type is irqreturn_t. The mma8452 uses a variable
to store the return value, but the variable is of type int. Change this to
irqreturn_t. This makes it easier to verify that the code is correct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211101102734.32291-1-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 715b813..4ac4c06 100644 (file)
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1053,7 +1053,7 @@ static irqreturn_t mma8452_interrupt(int irq, void *p)
 {
        struct iio_dev *indio_dev = p;
        struct mma8452_data *data = iio_priv(indio_dev);
-       int ret = IRQ_NONE;
+       irqreturn_t ret = IRQ_NONE;
        int src;
 
        src = i2c_smbus_read_byte_data(data->client, MMA8452_INT_SRC);