From: Brian Paul <brianp@vmware.com>
Date: Mon, 24 Aug 2009 18:43:57 +0000 (-0600)
Subject: vbo: fix divide by zero exception
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=93aa0fd81c44c7a5f29f30e8f730e060597b06ad;p=mesa.git

vbo: fix divide by zero exception

Fixes bug 23489.
---

diff --git a/src/mesa/vbo/vbo_exec_draw.c b/src/mesa/vbo/vbo_exec_draw.c
index d76c45f3560..625452ac09a 100644
--- a/src/mesa/vbo/vbo_exec_draw.c
+++ b/src/mesa/vbo/vbo_exec_draw.c
@@ -398,7 +398,7 @@ vbo_exec_vtx_flush( struct vbo_exec_context *exec, GLboolean unmap )
       vbo_exec_vtx_unmap( 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) /