From bb84359c4143c6c942f25a4a16ce64a43dbab9c4 Mon Sep 17 00:00:00 2001
From: Andreas Mohr <amohr@codeweavers.com>
Date: Sat, 4 Nov 2000 02:55:08 +0000
Subject: [PATCH] Avoid division by zero.

---
 dlls/ddraw/dsurface/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/ddraw/dsurface/main.c b/dlls/ddraw/dsurface/main.c
index 4d123b9ac51..fb66438175f 100644
--- a/dlls/ddraw/dsurface/main.c
+++ b/dlls/ddraw/dsurface/main.c
@@ -281,6 +281,8 @@ HRESULT WINAPI IDirectDrawSurface4Impl_Blt(
 	LPBYTE sbase;
 	int sx, xinc, sy, yinc;
 
+	if (!dstwidth || !dstheight) /* hmm... stupid program ? */
+	    goto release;
 	sbase = (BYTE*)sdesc.u1.lpSurface+(xsrc.top*sdesc.lPitch)+xsrc.left*bpp;
 	xinc = (srcwidth << 16) / dstwidth;
 	yinc = (srcheight << 16) / dstheight;