regulator: max77693: Use of_get_child_by_name

of_find_node_by_name walks the allnodes list, and can thus walk
outside of the parent node. Use of_get_child_by_name instead.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c
index 5fb899f..057d040 100644
--- a/drivers/regulator/max77693.c
+++ b/drivers/regulator/max77693.c
@@ -170,7 +170,7 @@
 	struct max77693_regulator_data *tmp;
 	int i, matched = 0;
 
-	np = of_find_node_by_name(dev->parent->of_node, "regulators");
+	np = of_get_child_by_name(dev->parent->of_node, "regulators");
 	if (!np)
 		return -EINVAL;