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 <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/da9055-regulator.c

···
 	if (!nproot)
 		return -ENODEV;
 
-	np = of_find_node_by_name(nproot, "regulators");
+	np = of_get_child_by_name(nproot, "regulators");
 	if (!np)
 		return -ENODEV;