ASoC: rsnd: add missing of_node_put

for_each_child_of_node performs an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e,e1;
identifier l;
@@

 for_each_child_of_node(e1,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  goto l;
)
   ...
 }
...
l: ... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/rcar/dvc.c

@@ -380,13 +380,16 @@ int rsnd_dvc_probe(struct rsnd_priv *priv)
 		clk = devm_clk_get(dev, name);
 		if (IS_ERR(clk)) {
 			ret = PTR_ERR(clk);
+			of_node_put(np);
 			goto rsnd_dvc_probe_done;
 		}
 
 		ret = rsnd_mod_init(priv, rsnd_mod_get(dvc), &rsnd_dvc_ops,
 				    clk, rsnd_mod_get_status, RSND_MOD_DVC, i);
-		if (ret)
+		if (ret) {
+			of_node_put(np);
 			goto rsnd_dvc_probe_done;
+		}
 
 		i++;
 	}