[PATCH 3/4] staging: iio: ad7150: simplify i2c SMBus return treatment

[Melissa Wen]

Since i2c_smbus_write_byte_data returns no-positive value, this commit
making the treatment of its return value less verbose.

Signed-off-by: Melissa Wen <melissa.srw@xxxxxxxxx>
---
 drivers/staging/iio/cdc/ad7150.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index 4ba46fb6ac02..3a4572a9e5ec 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -201,16 +201,12 @@ static int ad7150_write_event_params(struct iio_dev *indio_dev,
 	ret = i2c_smbus_write_byte_data(chip->client,
 					ad7150_addresses[chan][4],
 					sens);
-	if (ret < 0)
+	if (ret)
 		return ret;
-
-	ret = i2c_smbus_write_byte_data(chip->client,
+	else
+		return i2c_smbus_write_byte_data(chip->client,
 					ad7150_addresses[chan][5],
 					timeout);
-	if (ret < 0)
-		return ret;
-
-	return 0;
 }
 
 static int ad7150_write_event_config(struct iio_dev *indio_dev,
-- 
2.20.1