From adae2048c0310d203bee53b974fe8745cda02fa0 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Wed, 11 Jun 1997 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1997-06-11

---
 pc/devvga.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pc/devvga.c b/pc/devvga.c
index bd383baa6f60c2c23f802fbfcdc64695d1b7fbc1..7f218883763be00eb43675981df3e10e775ad115 100644
--- a/pc/devvga.c
+++ b/pc/devvga.c
@@ -315,6 +315,8 @@ vgactl(char *arg)
 
 		/* see if it fits in the usual place */
 		if(size <= Footprint){
+			if(screenmem != SCREENMEM)
+				upafree(screenmem, footprint);
 			screenmem = SCREENMEM;
 			if(size == 0){
 				footprint = Footprint;
@@ -351,6 +353,9 @@ vgactl(char *arg)
 			mem = upamalloc(0, size, align);
 		if(mem == 0)
 			error("not enough free address space");
+
+		if(screenmem != SCREENMEM)
+			upafree(screenmem, footprint);
 		screenmem = mem;
 		gscreen.base = (void*)screenmem;
 		footprint = size;