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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>
This commit is contained in:
Charles Keepax 2017-03-28 15:14:37 +01:00 committed by Mark Brown
parent d00b74613f
commit 2543ef3173
1 changed files with 5 additions and 4 deletions
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9
drivers/regulator/arizona-micsupp.c
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@ -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;
}