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| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2017-03-28 15:14:38 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-03-29 17:27:32 +0100 |
| commit | 0feb837a42c95fee901e03f76a1266db85ceb6ec (patch) | |
| tree | f611ecd88057948f4a2ca7f789d40b8e34c02166 /drivers/regulator/arizona-ldo1.c | |
| parent | 2543ef3173889373fc07df61520e1bb42a99c85e (diff) | |
| download | linux-0feb837a42c95fee901e03f76a1266db85ceb6ec.tar.gz linux-0feb837a42c95fee901e03f76a1266db85ceb6ec.tar.bz2 linux-0feb837a42c95fee901e03f76a1266db85ceb6ec.zip | |
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>
Diffstat (limited to 'drivers/regulator/arizona-ldo1.c')
| -rw-r--r-- | drivers/regulator/arizona-ldo1.c | 9 |
1 files 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; } |