Index: head/sys/dev/superio/superio.c
===================================================================
--- head/sys/dev/superio/superio.c
+++ head/sys/dev/superio/superio.c
@@ -405,7 +405,7 @@
 {
 	switch (type) {
 	case SUPERIO_DEV_NONE:
-		return ("invalid");
+		return ("none");
 	case SUPERIO_DEV_HWM:
 		return ("HWM");
 	case SUPERIO_DEV_WDT:
@@ -415,6 +415,7 @@
 	case SUPERIO_DEV_MAX:
 		return ("invalid");
 	}
+	return ("invalid");
 }
 
 static int