From: Miaoqian Lin <linmq006@gmail.com>
Date: Wed, 11 May 2022 12:07:37 +0000 (+0400)
Subject: rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge
X-Git-Tag: baikal/mips/sdk5.9~172
X-Git-Url: https://git.baikalelectronics.ru/?a=commitdiff_plain;h=0783592e04b3972bf7aa4b82be868842a07699b0;p=kernel.git

rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge

[ Upstream commit 2da6bfb2b12cd7c53f7b7bb309e46c53fda97477 ]

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

Fixes: 6d771081793f ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220511120737.57374-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 370688e8646bf..c1c07ff39a796 100644
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -1380,6 +1380,7 @@ 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;