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regulator: Implement devm_regulator_free()
Allow consumers to free regulators allocated using devm_regulator_get() if they need to. This will not normally be required. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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070b907922
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2 changed files with 29 additions and 0 deletions
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@ -1421,6 +1421,34 @@ void regulator_put(struct regulator *regulator)
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}
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EXPORT_SYMBOL_GPL(regulator_put);
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static int devm_regulator_match(struct device *dev, void *res, void *data)
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{
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struct regulator **r = res;
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if (!r || !*r) {
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WARN_ON(!r || !*r);
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return 0;
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}
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return *r == data;
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}
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/**
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* devm_regulator_put - Resource managed regulator_put()
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* @regulator: regulator to free
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*
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* Deallocate a regulator allocated with devm_regulator_get(). Normally
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* this function will not need to be called and the resource management
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* code will ensure that the resource is freed.
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*/
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void devm_regulator_put(struct regulator *regulator)
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{
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int rc;
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rc = devres_destroy(regulator->dev, devm_regulator_release,
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devm_regulator_match, regulator);
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WARN_ON(rc);
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}
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EXPORT_SYMBOL_GPL(devm_regulator_put);
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static int _regulator_can_change_status(struct regulator_dev *rdev)
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{
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if (!rdev->constraints)
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@ -137,6 +137,7 @@ struct regulator *__must_check devm_regulator_get(struct device *dev,
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struct regulator *__must_check regulator_get_exclusive(struct device *dev,
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const char *id);
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void regulator_put(struct regulator *regulator);
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void devm_regulator_free(struct regulator *regulator);
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/* regulator output control and status */
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int regulator_enable(struct regulator *regulator);
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