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regulator: scmi: fix of_node refcount leak in scmi_regulator_probe()

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[ Upstream commit fa11039d6c ]

scmi_regulator_probe() calls of_find_node_by_name() which takes a
reference on the returned device node. On the error path where
process_scmi_regulator_of_node() fails, the function returns without
calling of_node_put() on the child node, leaking the reference.

Add of_node_put(np) on the error path to properly release the
reference.

Cc: stable@vger.kernel.org
Fixes: 0fbeae70ee ("regulator: add SCMI driver")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20260527104850.872415-1-vulab@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wentao Liang
2026-07-24 16:03:51 +02:00
committed by Greg Kroah-Hartman
parent 7c90aa5cae
commit e2baf8ea13
1 changed files with 3 additions and 1 deletions
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drivers/regulator/scmi-regulator.c
+3 -1
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@@ -345,8 +345,10 @@ static int scmi_regulator_probe(struct scmi_device *sdev)
for_each_child_of_node_scoped(np, child) {
ret = process_scmi_regulator_of_node(sdev, ph, child, rinfo);
/* abort on any mem issue */
if (ret == -ENOMEM)
if (ret == -ENOMEM) {
of_node_put(np);
return ret;
}
}
of_node_put(np);
/*