Commit 49a6bb7a authored Dec 01, 2015 by Mark Brown

regulator: core: Ensure we lock all regulators



The latest workaround for the lockdep interface's not using the second
argument of mutex_lock_nested() changed the loop missed locking the last
regulator due to a thinko with the loop termination condition exiting
one regulator too soon.

Reported-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent bb41897e

drivers/regulator/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -141,7 +141,7 @@ static void regulator_lock_supply(struct regulator_dev *rdev)
		int i;

		mutex_lock(&rdev->mutex);
		for (i = 1; rdev->supply; rdev = rdev->supply->rdev, i++)
		for (i = 1; rdev; rdev = rdev->supply->rdev, i++)
		mutex_lock_nested(&rdev->mutex, i);
		}