regulator: Don't report zero volts for the fixed voltage regulator
If we don't know what voltage the regulator is set to return an error
rather than reporting zero volts.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 21ecf21..ccbead0 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -80,7 +80,10 @@
{
struct fixed_voltage_data *data = rdev_get_drvdata(dev);
- return data->microvolts;
+ if (data->microvolts)
+ return data->microvolts;
+ else
+ return -EINVAL;
}
static int fixed_voltage_list_voltage(struct regulator_dev *dev,