From 84664c1029ffbaefeed5b3f169f51bf87acfeeca Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Tue, 25 Jun 1996 04:16:02 +0000
Subject: [PATCH] paranoid check for null buffer in unmap

---
 util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util.c b/util.c
index ad4dec95..4da0931a 100644
--- a/util.c
+++ b/util.c
@@ -112,7 +112,7 @@ char *map_file(int fd,off_t len)
 
 void unmap_file(char *buf,off_t len)
 {
-  if (len > 0)
+  if (len > 0 && buf)
     munmap(buf,len);
 }
 
-- 
2.34.1