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regulator: of: Fix refcount leak bug in of_get_regulation_constraints() 

[ Upstream commit 66efb665cd ]

We should call the of_node_put() for the reference returned by
of_get_child_by_name() which has increased the refcount.

Fixes: 40e20d68bb ("regulator: of: Add support for parsing regulator_state for suspend state")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220715111027.391032-1-windhl@126.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Liang He 2022-07-15 19:10:27 +08:00 committed by Greg Kroah-Hartman
parent f62db13b7c
commit 11ecb4f873
1 changed files with 5 additions and 1 deletions
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6
drivers/regulator/of_regulator.c
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@ -264,8 +264,12 @@ static int of_get_regulation_constraints(struct device *dev,
}
suspend_np = of_get_child_by_name(np, regulator_states[i]);
if (!suspend_np || !suspend_state)
if (!suspend_np)
continue;
if (!suspend_state) {
of_node_put(suspend_np);
continue;
}
if (!of_property_read_u32(suspend_np, "regulator-mode",
&pval)) {