hwmon: (sht15) Use devm_regulator_get_optional()

Since the sht15 driver supports operation without an external vref
regulator the driver should use the new devm_regulator_get_optional() to
indicate that a stub regulator should not be provided.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 2507f90..ab5dc3a 100644 (file)
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -957,7 +957,7 @@ static int sht15_probe(struct platform_device *pdev)
         * If a regulator is available,
         * query what the supply voltage actually is!
         */
-       data->reg = devm_regulator_get(data->dev, "vcc");
+       data->reg = devm_regulator_get_optional(data->dev, "vcc");
        if (!IS_ERR(data->reg)) {
                int voltage;