diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 1de1b12..91b71e7 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -601,8 +601,8 @@
 		uninorth_node = of_find_node_by_name(NULL, "u3");
 	}
 	if (uninorth_node) {
-		int *revprop = (int *)
-			get_property(uninorth_node, "device-rev", NULL);
+		const int *revprop = get_property(uninorth_node,
+				"device-rev", NULL);
 		if (revprop != NULL)
 			uninorth_rev = *revprop & 0x3f;
 		of_node_put(uninorth_node);