Commit e2c09ae7 authored Jul 15, 2015 by Javier Martinez Canillas Committed by Mark Brown Jul 16, 2015

regulator: core: Increase refcount for regulator supply's module



When a regulator is unregistered with regulator_unregister(), a call to
regulator_put() is made for its input supply if there is one. This does
a module_put() to decrement the refcount of the module that owns the
supply but there isn't a corresponding try_module_get() in set_supply()
to make the calls balanced.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent d770e558

drivers/regulator/core.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1105,6 +1105,9 @@ static int set_supply(struct regulator_dev *rdev,

		rdev_info(rdev, "supplied by %s\n", rdev_get_name(supply_rdev));

		if (!try_module_get(supply_rdev->owner))
		return -ENODEV;

		rdev->supply = create_regulator(supply_rdev, &rdev->dev, "SUPPLY");
		if (rdev->supply == NULL) {
		err = -ENOMEM;