[PATCH v0 05/14] iio: magnetometer: ak8975: Avoid using temporary variable

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

Avoid using temporary variable in ak8975_read_axis(). With that being done,
the clamp_t() call becomes idiomatic in the driver and can be factored out
to a helper later on (and if needed).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/iio/magnetometer/ak8975.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 53987f3b13d2..b70fbef1ea3c 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -729,7 +729,6 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
 	const struct i2c_client *client = data->client;
 	const struct ak_def *def = data->def;
 	__le16 rval;
-	u16 buff;
 	int ret;
 
 	pm_runtime_get_sync(&data->client->dev);
@@ -766,8 +765,8 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
 	pm_runtime_put_autosuspend(&data->client->dev);
 
 	/* Swap bytes and convert to valid range. */
-	buff = le16_to_cpu(rval);
-	*val = clamp_t(s16, buff, -def->range, def->range);
+	*val = clamp_t(s16, le16_to_cpu(rval), -def->range, def->range);
+
 	return IIO_VAL_INT;
 
 exit:
-- 
2.50.1