From 73eb98db250e0f85c7ff0ea2cfab676809f5fe15 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sun, 23 Aug 1998 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1998-08-23

---
 port/segment.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/port/segment.c b/port/segment.c
index 32cdb765739bde43714d26da342d197375521c48..cba364cf4b783991b53a87282293ab741138798d 100644
--- a/port/segment.c
+++ b/port/segment.c
@@ -449,10 +449,11 @@ mfreeseg(Segment *s, ulong start, int pages)
 		}
 		while(j < PTEPERTAB) {
 			pg = s->map[i]->pages[j];
-			if(pg)
+			if(pg){
 				s->map[i]->pages[j] = 0;
-			pg->next = list;
-			list = pg;
+				pg->next = list;
+				list = pg;
+			}
 			if(--pages == 0)
 				goto out;
 			j++;