From b9b04872d526ed7955f647542399e110ace0325c Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Mon, 24 Aug 2009 12:43:57 -0600
Subject: [PATCH] vbo: fix divide by zero exception

Fixes bug 23489.
---
 src/mesa/vbo/vbo_exec_draw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/vbo/vbo_exec_draw.c b/src/mesa/vbo/vbo_exec_draw.c
index c53a4eee00c..98177a41750 100644
--- a/src/mesa/vbo/vbo_exec_draw.c
+++ b/src/mesa/vbo/vbo_exec_draw.c
@@ -383,7 +383,7 @@ void vbo_exec_vtx_flush( struct vbo_exec_context *exec,
    }
 
 
-   if (unmap) 
+   if (unmap || exec->vtx.vertex_size == 0)
       exec->vtx.max_vert = 0;
    else
       exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) / 
-- 
2.30.2