[PATCH] iio: light: cm32181: return zero after writing calibscale

[Giorgi Tchankvetadze]

From: Giorgi Tchankvetadze <giorgi@xxxxxxxxxxxxxxxxx>

The write_raw callback is documented to return 0 on success or a
negative error code.  However, the IIO_CHAN_INFO_CALIBSCALE case
returns 'val' (the user-supplied value) instead of 0.

Fix it by returning 0 on success, matching the behavior of other
calibscale implementations in the subsystem.

Fixes: 971672c0b3cc ("iio: add Capella CM32181 ambient light sensor driver.")
Signed-off-by: Giorgi Tchankvetadze <giorgi@xxxxxxxxxxxxxxxxx>
---
 drivers/iio/light/cm32181.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
index 2590fc8fd154..b32a94028f09 100644
--- a/drivers/iio/light/cm32181.c
+++ b/drivers/iio/light/cm32181.c
@@ -368,7 +368,7 @@ static int cm32181_write_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 	case IIO_CHAN_INFO_CALIBSCALE:
 		cm32181->calibscale = val;
-		return val;
+		return 0;
 	case IIO_CHAN_INFO_INT_TIME:
 		ret = cm32181_write_als_it(cm32181, val2);
 		return ret;
-- 
2.52.0