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Commit 9332546f authored by Mark Brown's avatar Mark Brown Committed by Liam Girdwood
Browse files

regulator: Push locking for regulator_is_enabled() out 



Allows use by more of the internal regulator API code.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent f25e0b4f

drivers/regulator/core.c

+16 −14
Original line number Original line Diff line number Diff line
@@ -280,8 +280,13 @@ static ssize_t regulator_state_show(struct device *dev, 
				   struct device_attribute *attr, char *buf)

				   struct device_attribute *attr, char *buf)

{

{

	struct regulator_dev *rdev = dev_get_drvdata(dev);

	struct regulator_dev *rdev = dev_get_drvdata(dev);

	ssize_t ret;



	mutex_lock(&rdev->mutex);

	ret = regulator_print_state(buf, _regulator_is_enabled(rdev));

	mutex_unlock(&rdev->mutex);





	return regulator_print_state(buf, _regulator_is_enabled(rdev));

	return ret;

}

}

static DEVICE_ATTR(state, 0444, regulator_state_show, NULL);

static DEVICE_ATTR(state, 0444, regulator_state_show, NULL);
@@ -1365,20 +1370,11 @@ EXPORT_SYMBOL_GPL(regulator_force_disable); 




static int _regulator_is_enabled(struct regulator_dev *rdev)

static int _regulator_is_enabled(struct regulator_dev *rdev)

{

{

	int ret;



	mutex_lock(&rdev->mutex);



	/* sanity check */

	/* sanity check */

	if (!rdev->desc->ops->is_enabled) {

	if (!rdev->desc->ops->is_enabled)

		ret = -EINVAL;

		return -EINVAL;

		goto out;

	}





	ret = rdev->desc->ops->is_enabled(rdev);

	return rdev->desc->ops->is_enabled(rdev);

out:

	mutex_unlock(&rdev->mutex);

	return ret;

}

}





/**

/**
@@ -1395,7 +1391,13 @@ static int _regulator_is_enabled(struct regulator_dev *rdev) 
 */

 */

int regulator_is_enabled(struct regulator *regulator)

int regulator_is_enabled(struct regulator *regulator)

{

{

	return _regulator_is_enabled(regulator->rdev);

	int ret;



	mutex_lock(&regulator->rdev->mutex);

	ret = _regulator_is_enabled(regulator->rdev);

	mutex_unlock(&regulator->rdev->mutex);



	return ret;

}

}

EXPORT_SYMBOL_GPL(regulator_is_enabled);

EXPORT_SYMBOL_GPL(regulator_is_enabled);