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authorAxel Lin <axel.lin@gmail.com>2011-07-15 06:50:43 +0400
committerLiam Girdwood <lrg@slimlogic.co.uk>2011-07-22 14:43:59 +0400
commit1a6958e79f9e191c89fe0c13f7452b0bd8097050 (patch)
treeb857e86f6ffe1e25a391059b153ac5f910e1ea3f /drivers/regulator
parent89f425ed5bf3d4fd97e840296dccd75b8e0fe4c9 (diff)
downloadlinux-1a6958e79f9e191c89fe0c13f7452b0bd8097050.tar.xz
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 <axel.lin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/core.c7
1 files 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 @@ unset_supplies:
unset_regulator_supplies(rdev);
scrub:
+ kfree(rdev->constraints);
device_unregister(&rdev->dev);
/* device core frees rdev */
rdev = ERR_PTR(ret);