[SPARC64]: Use in-kernel PROM tree for EBUS and ISA.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
index d89f83f..1cc706e 100644
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -575,9 +575,9 @@
 	int devidx = 0;
 
 	while ((echild = bbc_i2c_getdev(devidx++)) != NULL) {
-		if (!strcmp(echild->prom_name, "temperature"))
+		if (!strcmp(echild->prom_node->name, "temperature"))
 			attach_one_temp(echild, temp_index++);
-		if (!strcmp(echild->prom_name, "fan-control"))
+		if (!strcmp(echild->prom_node->name, "fan-control"))
 			attach_one_fan(echild, fan_index++);
 	}
 	if (temp_index != 0 && fan_index != 0) {