diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index 5061c3f..3efea7d 100644
--- a/arch/ia64/mm/numa.c
+++ b/arch/ia64/mm/numa.c
@@ -70,7 +70,7 @@
 			return node_memblk[i].nid;
 	}
 
-	return 0;
+	return -1;
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG