rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge

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

Fixes: 53e2822 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Miaoqian Lin <[email protected]>
Signed-off-by: Bjorn Andersson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: Yuuoniy

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;