The patch
regulator: arizona-micsupp: 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.
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Thanks, Mark
From 2543ef3173889373fc07df61520e1bb42a99c85e Mon Sep 17 00:00:00 2001
From: Charles Keepax ckeepax@opensource.wolfsonmicro.com Date: Tue, 28 Mar 2017 15:14:37 +0100 Subject: [PATCH] regulator: arizona-micsupp: 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-micsupp.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c index fcb98dbda837..0ed14e41de11 100644 --- a/drivers/regulator/arizona-micsupp.c +++ b/drivers/regulator/arizona-micsupp.c @@ -197,7 +197,8 @@ static const struct regulator_init_data arizona_micsupp_ext_default = { .num_consumer_supplies = 1, };
-static int arizona_micsupp_of_get_pdata(struct arizona *arizona, +static int arizona_micsupp_of_get_pdata(struct device *dev, + struct arizona *arizona, struct regulator_config *config, const struct regulator_desc *desc) { @@ -211,7 +212,7 @@ static int arizona_micsupp_of_get_pdata(struct arizona *arizona, if (np) { config->of_node = np;
- init_data = of_get_regulator_init_data(arizona->dev, np, desc); + init_data = of_get_regulator_init_data(dev, np, desc);
if (init_data) { init_data->consumer_supplies = &micsupp->supply; @@ -266,8 +267,8 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
if (IS_ENABLED(CONFIG_OF)) { if (!dev_get_platdata(arizona->dev)) { - ret = arizona_micsupp_of_get_pdata(arizona, &config, - desc); + ret = arizona_micsupp_of_get_pdata(&pdev->dev, arizona, + &config, desc); if (ret < 0) return ret; }