Alexander Dorofeyev : wined3d: Get rid of spurious err when locking with WINED3DLOCK_DISCARD.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8f8076c3f7203451d030567f3421ac5e2fded77f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8f8076c3f7203451d030567f3421ac5e2fded77f

Author: Alexander Dorofeyev <alexd4 at inbox.lv>
Date:   Sun Mar  9 16:08:57 2008 +0200

wined3d: Get rid of spurious err when locking with WINED3DLOCK_DISCARD.

---

 dlls/wined3d/surface.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/dlls/wined3d/surface.c b/dlls/wined3d/surface.c
index fdc16cd..1b7439a 100644
--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -986,7 +986,9 @@ static HRESULT WINAPI IWineD3DSurfaceImpl_LockRect(IWineD3DSurface *iface, WINED
     if (Flags & WINED3DLOCK_DISCARD) {
         /* Set SFLAG_INSYSMEM, so we'll never try to download the data from the texture. */
         TRACE("WINED3DLOCK_DISCARD flag passed, marking local copy as up to date\n");
+        surface_prepare_system_memory(This); /* Makes sure memory is allocated */
         This->Flags |= SFLAG_INSYSMEM;
+        goto lock_end;
     }
 
     if (This->Flags & SFLAG_INSYSMEM) {