regulator: core: Add label to collate of_node_put() statements

In function of_get_child_regulator(), the loop for_each_child_of_node()
contains two mid-loop return statements, each preceded by a statement
putting child. In order to reduce this repetition, create a new label,
err_node_put, that puts child and then returns the required value;
edit the mid-loop return blocks to instead go to this new label.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190815053704.32156-1-nishkadg.linux@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/core.c

@@ -380,16 +380,17 @@ static struct device_node *of_get_child_regulator(struct device_node *parent,
 
 		if (!regnode) {
 			regnode = of_get_child_regulator(child, prop_name);
-			if (regnode) {
-				of_node_put(child);
-				return regnode;
-			}
+			if (regnode)
+				goto err_node_put;
 		} else {
-			of_node_put(child);
-			return regnode;
+			goto err_node_put;
 		}
 	}
 	return NULL;
+
+err_node_put:
+	of_node_put(child);
+	return regnode;
 }
 
 /**