Commit 1768514e authored Aug 07, 2015 by Mark Brown

regulator: core: Reduce rdev locking region when releasing regulator



When we release a regulator we need to remove references to it from the
rdev which means locking the rdev.  Currently we also free resources
associated with the regulator inside the rdev lock but there is no need
to do this, we can reduce the region the lock is held by restricting it
to just actions that affect the rdev.

Signed-off-by: Mark Brown <broonie@kernel.org>

parent 7cd71c3b

drivers/regulator/core.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -1601,14 +1601,15 @@ static void _regulator_put(struct regulator *regulator)
		if (regulator->dev)
		sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name);
		mutex_lock(&rdev->mutex);
		kfree(regulator->supply_name);
		list_del(&regulator->list);
		kfree(regulator);

		rdev->open_count--;
		rdev->exclusive = 0;
		mutex_unlock(&rdev->mutex);

		kfree(regulator->supply_name);
		kfree(regulator);

		module_put(rdev->owner);
		}