regulator: fan53555: Do not hardcode return values

Propagate the error values returned by the function instead.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/regulator/fan53555.c

@@ -90,11 +90,11 @@ static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV)
 		return 0;
 	ret = regulator_map_voltage_linear(rdev, uV, uV);
 	if (ret < 0)
-		return -EINVAL;
+		return ret;
 	ret = regmap_update_bits(di->regmap, di->sleep_reg,
 					VSEL_NSEL_MASK, ret);
 	if (ret < 0)
-		return -EINVAL;
+		return ret;
 	/* Cache the sleep voltage setting.
 	 * Might not be the real voltage which is rounded */
 	di->sleep_vol_cache = uV;
@@ -260,14 +260,14 @@ static int fan53555_regulator_probe(struct i2c_client *client,
 	ret = regmap_read(di->regmap, FAN53555_ID1, &val);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to get chip ID!\n");
-		return -ENODEV;
+		return ret;
 	}
 	di->chip_id = val & DIE_ID;
 	/* Get chip revision */
 	ret = regmap_read(di->regmap, FAN53555_ID2, &val);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to get chip Rev!\n");
-		return -ENODEV;
+		return ret;
 	}
 	di->chip_rev = val & DIE_REV;
 	dev_info(&client->dev, "FAN53555 Option[%d] Rev[%d] Detected!\n",