[PATCH 09/10] iio: imu: adis: assign read val in debugfs hook only if op successful

[Alexandru Ardelean]

This was also caught by the `-Wmaybe-uninitialized` warning, which
(ironically as-is) it makes quite a lot of sense to do for this.

Fixes: 78026a6fde8f7 ("iio:imu:adis: Add debugfs register access support")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx>
---
 drivers/iio/imu/adis.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c
index dc2f9e061d98..85de565a4e80 100644
--- a/drivers/iio/imu/adis.c
+++ b/drivers/iio/imu/adis.c
@@ -229,7 +229,8 @@ int adis_debugfs_reg_access(struct iio_dev *indio_dev,
 		int ret;
 
 		ret = adis_read_reg_16(adis, reg, &val16);
-		*readval = val16;
+		if (ret == 0)
+			*readval = val16;
 
 		return ret;
 	} else {
-- 
2.20.1