From 1a6958e79f9e191c89fe0c13f7452b0bd8097050 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 15 Jul 2011 10:50:43 +0800 Subject: [PATCH] regulator: Fix memory leak in set_machine_constraints() error paths Properly kfree rdev->constraints in all set_machine_constraints() error paths. Also properly kfree rdev->constraints in regulator_register() error paths. Signed-off-by: Axel Lin Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- drivers/regulator/core.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 3700d0953d73..a01954456752 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -794,7 +794,6 @@ static int machine_constraints_voltage(struct regulator_dev *rdev, if (ret < 0) { rdev_err(rdev, "failed to apply %duV constraint\n", rdev->constraints->min_uV); - rdev->constraints = NULL; return ret; } } @@ -897,7 +896,6 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = suspend_prepare(rdev, rdev->constraints->initial_state); if (ret < 0) { rdev_err(rdev, "failed to set suspend state\n"); - rdev->constraints = NULL; goto out; } } @@ -924,13 +922,15 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = ops->enable(rdev); if (ret < 0) { rdev_err(rdev, "failed to enable\n"); - rdev->constraints = NULL; goto out; } } print_constraints(rdev); + return 0; out: + kfree(rdev->constraints); + rdev->constraints = NULL; return ret; } @@ -2701,6 +2701,7 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc, unset_regulator_supplies(rdev); scrub: + kfree(rdev->constraints); device_unregister(&rdev->dev); /* device core frees rdev */ rdev = ERR_PTR(ret);