From 3ca81eb4b9132549ab5f7eac9e4839e3b4f1c615 Mon Sep 17 00:00:00 2001
From: Fabian Greffrath <fabian@greffrath.com>
Date: Thu, 17 Feb 2022 22:02:42 +0100
Subject: [PATCH] fix a potential crash in the demo reel

---
 Source/d_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/d_main.c b/Source/d_main.c
index a2396d1d..c5301cc0 100644
--- a/Source/d_main.c
+++ b/Source/d_main.c
@@ -543,7 +543,7 @@ void D_DoAdvanceDemo(void)
     demosequence = 0;
   // [FG] the BFG Edition IWADs have no TITLEPIC lump, use DMENUPIC instead
   name = demostates[demosequence][gamemode].name;
-  if (!strcasecmp(name, "TITLEPIC") && W_CheckNumForName(name) < 0)
+  if (name && !strcasecmp(name, "TITLEPIC") && W_CheckNumForName(name) < 0)
   {
       name = "DMENUPIC";
       if (W_CheckNumForName(name) < 0)