From 5f61d3f88b95eda8c14407139701f1f686ea7f99 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 25 Aug 1994 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1994-08-25

---
 pc/kbd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pc/kbd.c b/pc/kbd.c
index 53266ce6c55f8927ad6ebd71752a4f64de74d3ae..ee3ab78e61c798ef65ec86d9b89a8853611fc403 100644
--- a/pc/kbd.c
+++ b/pc/kbd.c
@@ -243,7 +243,7 @@ serialmouse(int port, char *type, int setspeed)
 	if(mousetype == Mouseserial)
 		error(Emouseset);
 
-	if(port >= 2 || port < 0)
+	if(port >= 3 || port < 0)
 		error(Ebadarg);
 
 	/* set up /dev/eia0 as the mouse */