diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index c65e74d7cd0a..f3f8ad7c3df8 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -1060,8 +1060,7 @@ static struct device_node *find_audio_device(const char *name)
 	if (! gpiop)
 		return NULL;
   
-	for (np = of_get_next_child(gpiop, NULL); np;
-			np = of_get_next_child(gpiop, np)) {
+	for_each_child_of_node(gpiop, np) {
 		const char *property = of_get_property(np, "audio-gpio", NULL);
 		if (property && strcmp(property, name) == 0)
 			break;
@@ -1080,8 +1079,7 @@ static struct device_node *find_compatible_audio_device(const char *name)
 	if (!gpiop)
 		return NULL;
   
-	for (np = of_get_next_child(gpiop, NULL); np;
-			np = of_get_next_child(gpiop, np)) {
+	for_each_child_of_node(gpiop, np) {
 		if (of_device_is_compatible(np, name))
 			break;
 	}