From: Liang He windhl@126.com
stable inclusion from stable-v5.10.137 commit 332e555dca074c4eb2084898021c3676423814c3 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I60PLB
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 66efb665cd5ad69b27dca8571bf89fc6b9c628a4 ]
We should call the of_node_put() for the reference returned by of_get_child_by_name() which has increased the refcount.
Fixes: 40e20d68bb3f ("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 Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- drivers/regulator/of_regulator.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 06c0b15fe4c0..5d844697c7b6 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -206,8 +206,12 @@ 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)) {