[PATCH 4.14 081/176] regulator: axp20x: Fix reference cout leak

From: Greg Kroah-Hartman
Date: Mon Mar 01 2021 - 13:58:59 EST


From: Pan Bian <bianpan2016@xxxxxxx>

[ Upstream commit e78bf6be7edaacb39778f3a89416caddfc6c6d70 ]

Decrements the reference count of device node and its child node.

Fixes: dfe7a1b058bb ("regulator: AXP20x: Add support for regulators subsystem")
Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
Link: https://lore.kernel.org/r/20210120123313.107640-1-bianpan2016@xxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/regulator/axp20x-regulator.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index 376a99b7cf5da..901e3fb65ebf7 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -493,7 +493,7 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
static int axp20x_regulator_parse_dt(struct platform_device *pdev)
{
struct device_node *np, *regulators;
- int ret;
+ int ret = 0;
u32 dcdcfreq = 0;

np = of_node_get(pdev->dev.parent->of_node);
@@ -508,13 +508,12 @@ static int axp20x_regulator_parse_dt(struct platform_device *pdev)
ret = axp20x_set_dcdc_freq(pdev, dcdcfreq);
if (ret < 0) {
dev_err(&pdev->dev, "Error setting dcdc frequency: %d\n", ret);
- return ret;
}
-
of_node_put(regulators);
}

- return 0;
+ of_node_put(np);
+ return ret;
}

static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 workmode)
--
2.27.0