[PATCH 5.18 0887/1095] rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge

From: Greg Kroah-Hartman
Date: Mon Aug 15 2022 - 18:43:47 EST


From: Miaoqian Lin <linmq006@xxxxxxxxx>

[ Upstream commit 65382585f067d4256ba087934f30f85c9b6984de ]

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.

Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220511120737.57374-1-linmq006@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/rpmsg/qcom_smd.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 1957b27c4cf3..f7af53891ef9 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1383,6 +1383,7 @@ static int qcom_smd_parse_edge(struct device *dev,
}

edge->ipc_regmap = syscon_node_to_regmap(syscon_np);
+ of_node_put(syscon_np);
if (IS_ERR(edge->ipc_regmap)) {
ret = PTR_ERR(edge->ipc_regmap);
goto put_node;
--
2.35.1