regulator: da9055: 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/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index 3f334ea..604a6f7 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -559,7 +559,7 @@
 	if (!nproot)
 		return -ENODEV;
 
-	np = of_find_node_by_name(nproot, "regulators");
+	np = of_get_child_by_name(nproot, "regulators");
 	if (!np)
 		return -ENODEV;