This is a note to let you know that I've just added the patch titled rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rpmsg-qcom_smd-fix-refcount-leak-in-qcom_smd_parse_e.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 7f8fd9b9651ed558836d2e24c5f5638e757fdca8 Author: Miaoqian Lin <linmq006@xxxxxxxxx> Date: Wed May 11 16:07:37 2022 +0400 rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge [ 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> diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index a4db9f6100d2..0b1e853d8c91 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -1364,6 +1364,7 @@ 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;