From 9f72f784310320ec219401fde54815ab05564aa4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20D=C3=B6singer?= <stefan@codeweavers.com>
Date: Mon, 27 Jan 2014 14:41:47 +0100
Subject: [PATCH] wined3d: Set buffer->map_ptr to NULL on unmap.

---
 dlls/wined3d/buffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/wined3d/buffer.c b/dlls/wined3d/buffer.c
index b857119cf2d..c53021b9bc4 100644
--- a/dlls/wined3d/buffer.c
+++ b/dlls/wined3d/buffer.c
@@ -1117,6 +1117,7 @@ void CDECL wined3d_buffer_unmap(struct wined3d_buffer *buffer)
         context_release(context);
 
         buffer_clear_dirty_areas(buffer);
+        buffer->map_ptr = NULL;
     }
     else if (buffer->flags & WINED3D_BUFFER_HASDESC)
     {