Henri Verbeet : d3d9: Properly retrieve an interface pointer in d3d9_texture_3d_UnlockBox().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6b9f151c9e1e206949087e3435cc6064b73e95a1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=6b9f151c9e1e206949087e3435cc6064b73e95a1

Author: Henri Verbeet <hverbeet at codeweavers.com>
Date:   Wed May  2 21:47:55 2012 +0200

d3d9: Properly retrieve an interface pointer in d3d9_texture_3d_UnlockBox().

---

 dlls/d3d9/texture.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/dlls/d3d9/texture.c b/dlls/d3d9/texture.c
index 6544edc..f453f90 100644
--- a/dlls/d3d9/texture.c
+++ b/dlls/d3d9/texture.c
@@ -1207,6 +1207,7 @@ static HRESULT WINAPI d3d9_texture_3d_UnlockBox(IDirect3DVolumeTexture9 *iface,
 {
     struct d3d9_texture *texture = impl_from_IDirect3DVolumeTexture9(iface);
     struct wined3d_resource *sub_resource;
+    IDirect3DVolume9Impl *volume_impl;
     HRESULT hr;
 
     TRACE("iface %p, level %u.\n", iface, level);
@@ -1215,7 +1216,10 @@ static HRESULT WINAPI d3d9_texture_3d_UnlockBox(IDirect3DVolumeTexture9 *iface,
     if (!(sub_resource = wined3d_texture_get_sub_resource(texture->wined3d_texture, level)))
         hr = D3DERR_INVALIDCALL;
     else
-        hr = IDirect3DVolume9_UnlockBox((IDirect3DVolume9 *)wined3d_resource_get_parent(sub_resource));
+    {
+        volume_impl = wined3d_resource_get_parent(sub_resource);
+        hr = IDirect3DVolume9_UnlockBox(&volume_impl->IDirect3DVolume9_iface);
+    }
     wined3d_mutex_unlock();
 
     return hr;