The patch
regulator: arizona-ldo1: Avoid potential memory leak reading init_data
has been applied to the regulator tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 0feb837a42c95fee901e03f76a1266db85ceb6ec Mon Sep 17 00:00:00 2001
From: Charles Keepax ckeepax@opensource.wolfsonmicro.com Date: Tue, 28 Mar 2017 15:14:38 +0100 Subject: [PATCH] regulator: arizona-ldo1: Avoid potential memory leak reading init_data
The device argument passed to of_get_regulator_init_data is used to do some devres memory allocation. Currently the driver passes the MFD device pointer to this function, this could result in the init_data allocation being leaked if the regulator is unbound but the MFD isn't.
Correct this issue by correctly passing the local platform device.
Signed-off-by: Charles Keepax ckeepax@opensource.wolfsonmicro.com Signed-off-by: Mark Brown broonie@kernel.org --- drivers/regulator/arizona-ldo1.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index 302b57cb89c6..cf558168664d 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -186,7 +186,8 @@ static const struct regulator_init_data arizona_ldo1_wm5110 = { .num_consumer_supplies = 1, };
-static int arizona_ldo1_of_get_pdata(struct arizona *arizona, +static int arizona_ldo1_of_get_pdata(struct device *dev, + struct arizona *arizona, struct regulator_config *config, const struct regulator_desc *desc) { @@ -212,8 +213,7 @@ static int arizona_ldo1_of_get_pdata(struct arizona *arizona, if (init_node) { config->of_node = init_node;
- init_data = of_get_regulator_init_data(arizona->dev, init_node, - desc); + init_data = of_get_regulator_init_data(dev, init_node, desc);
if (init_data) { init_data->consumer_supplies = &ldo1->supply; @@ -283,7 +283,8 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
if (IS_ENABLED(CONFIG_OF)) { if (!dev_get_platdata(arizona->dev)) { - ret = arizona_ldo1_of_get_pdata(arizona, &config, desc); + ret = arizona_ldo1_of_get_pdata(&pdev->dev, arizona, + &config, desc); if (ret < 0) return ret; }