HSI: omap_ssi: Fix refcount leak in ssi_probe

[ Upstream commit 9a2ea13 ]

When returning or breaking early from a
for_each_available_child_of_node() loop, we need to explicitly call
of_node_put() on the child node to possibly release the node.

Fixes: b209e04 ("HSI: Introduce OMAP SSI driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/hsi/controllers/omap_ssi_core.c

@@ -524,6 +524,7 @@ static int ssi_probe(struct platform_device *pd)
 		if (!childpdev) {
 			err = -ENODEV;
 			dev_err(&pd->dev, "failed to create ssi controller port\n");
+			of_node_put(child);
 			goto out3;
 		}
 	}