regulator: tps65217: 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>

drivers/regulator/tps65217-regulator.c

@@ -187,7 +187,7 @@ static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
 	struct device_node *regs;
 	int i, count;
 
-	regs = of_find_node_by_name(node, "regulators");
+	regs = of_get_child_by_name(node, "regulators");
 	if (!regs)
 		return NULL;