ASoC: rsnd: DT node clean up by using the of_node_put()

Driver needs to call of_node_put() after of_get_chile_by_name()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index 7da87cd..61009c4 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -598,18 +598,21 @@
 
 	nr = of_get_child_count(src_node);
 	if (!nr)
-		return;
+		goto rsnd_of_parse_src_end;
 
 	src_info = devm_kzalloc(dev,
 				sizeof(struct rsnd_src_platform_info) * nr,
 				GFP_KERNEL);
 	if (!src_info) {
 		dev_err(dev, "src info allocation error\n");
-		return;
+		goto rsnd_of_parse_src_end;
 	}
 
 	info->src_info		= src_info;
 	info->src_info_nr	= nr;
+
+rsnd_of_parse_src_end:
+	of_node_put(src_node);
 }
 
 int rsnd_src_probe(struct platform_device *pdev,