hwmon: (ds1621) fix coccinelle warnings

---
 drivers/hwmon/ds1621.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
 
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 5e398c9..872d767 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -378,10 +378,7 @@ static int ds1621_probe(struct i2c_client *client,
 	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
 							   client->name, data,
 							   ds1621_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ds1621_id[] = {