From d3fd7b40dbba842df4e540b303f9dcc647671437 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 27 Jul 2000 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2000-07-27

---
 pc/ether2114x.c    | 5 +++--
 pc/vgamach64xx.c   | 3 ++-
 port/devloopback.c | 7 ++++++-
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/pc/ether2114x.c b/pc/ether2114x.c
index 561fab85efdda01ac35406a72bf5014966287e00..90ad7b3f76b94d6f8cb22192b9554b0f5242028e 100644
--- a/pc/ether2114x.c
+++ b/pc/ether2114x.c
@@ -19,7 +19,7 @@
 
 #include "etherif.h"
 
-#define DEBUG		(1)
+#define DEBUG		(0)
 #define debug		if(DEBUG)print
 
 enum {
@@ -1400,8 +1400,9 @@ dec2114xpci(void)
 		softreset(ctlr);
 
 		if(srom(ctlr)){
+			iofree(ctlr->port);
 			free(ctlr);
-			break;
+			continue;
 		}
 
 		switch(ctlr->id){
diff --git a/pc/vgamach64xx.c b/pc/vgamach64xx.c
index 6adcc8f2feb6ee75bfb8f81496d61a65d5da2a75..9bf5437f1cf3a91a106f04f6232d8633e9bd4401 100644
--- a/pc/vgamach64xx.c
+++ b/pc/vgamach64xx.c
@@ -13,7 +13,7 @@
 #include "screen.h"
 
 /*
- * ATI Mach64(CT|ET|G*|VT|VU|L*).
+ * ATI Mach64(CT|ET|G*|V*|L*).
  */
 static ushort mach64xxdid[] = {
 	('C'<<8)|'T',
@@ -29,6 +29,7 @@ static ushort mach64xxdid[] = {
 	('G'<<8)|'Z',
 	('V'<<8)|'T',
 	('V'<<8)|'U',
+	('V'<<8)|'V',
 	('L'<<8)|'B',
 	('L'<<8)|'I',
 	('L'<<8)|'M',
diff --git a/port/devloopback.c b/port/devloopback.c
index 0e564a1584bc012fb81dcc557e2bbe953707ddf8..1335b1cc60e392485b36e0efa3d85c9c152a5161 100644
--- a/port/devloopback.c
+++ b/port/devloopback.c
@@ -296,8 +296,13 @@ loopbackopen(Chan *c, int omode)
 
 	lb = c->aux;
 	qlock(lb);
-	if(TYPE(c->qid.path) == Qdata)
+	if(TYPE(c->qid.path) == Qdata){
+		if(lb->link[ID(c->qid.path)].ref){
+			qunlock(lb);
+			error(Einuse);
+		}
 		lb->link[ID(c->qid.path)].ref++;
+	}
 	qunlock(lb);
 
 	c->mode = openmode(omode);