Added patch to avoid crashing when broken app tries to release surface although refcount is zero.

patches/Makefile

@@ -27,6 +27,7 @@ PATCHLIST := \
 	comctl32-LoadIconMetric.ok \
 	configure-Absolute_RPATH.ok \
 	configure-Detect_Gnutls.ok \
+	d3d9-Surface_Refcount.ok \
 	d3dx9_36-DXTn.ok \
 	d3dx9_36-Filter_Warnings.ok \
 	d3dx9_36-GetShaderSemantics.ok \
@@ -326,6 +327,24 @@ configure-Detect_Gnutls.ok:
 		echo '+    { "configure-Detect_Gnutls", "Sebastian Lackner", "Fix detection of gnutls on Ubuntu 14.10. [rev 3]" },'; \
 	) > configure-Detect_Gnutls.ok
 
+# Patchset d3d9-Surface_Refcount
+# |
+# | Included patches:
+# |   *	Don't decrease surface refcount when its already zero. [by Henri Verbeet]
+# |
+# | This patchset fixes the following Wine bugs:
+# |   *	[#18477] Avoid crashing when broken app tries to release surface although refcount is zero
+# |
+# | Modified files:
+# |   *	dlls/d3d9/surface.c
+# |
+.INTERMEDIATE: d3d9-Surface_Refcount.ok
+d3d9-Surface_Refcount.ok:
+	$(call APPLY_FILE,d3d9-Surface_Refcount/0001-d3d9-Don-t-decrease-surface-refcount-when-its-alread.patch)
+	@( \
+		echo '+    { "d3d9-Surface_Refcount", "Henri Verbeet", "Don'\''t decrease surface refcount when its already zero." },'; \
+	) > d3d9-Surface_Refcount.ok
+
 # Patchset d3dx9_36-DXTn
 # |
 # | Included patches:

patches/d3d9-Surface_Refcount/0001-d3d9-Don-t-decrease-surface-refcount-when-its-alread.patch

@@ -0,0 +1,29 @@
+From ee74f6d71079cda75ba94841e4369c519489c879 Mon Sep 17 00:00:00 2001
+From: Henri Verbeet <hverbeet@codeweavers.com>
+Date: Tue, 11 Nov 2014 22:32:00 +0100
+Subject: d3d9: Don't decrease surface refcount when its already zero.
+
+---
+ dlls/d3d9/surface.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/dlls/d3d9/surface.c b/dlls/d3d9/surface.c
+index e5eb11f..2aab5f3 100644
+--- a/dlls/d3d9/surface.c
++++ b/dlls/d3d9/surface.c
+@@ -91,6 +91,12 @@ static ULONG WINAPI d3d9_surface_Release(IDirect3DSurface9 *iface)
+         return IDirect3DBaseTexture9_Release(&surface->texture->IDirect3DBaseTexture9_iface);
+     }
+ 
++    if (!surface->resource.refcount)
++    {
++        ERR("Surface doesn't have any references.\n");
++        return 0;
++    }
++
+     refcount = InterlockedDecrement(&surface->resource.refcount);
+     TRACE("%p decreasing refcount to %u.\n", iface, refcount);
+ 
+-- 
+2.1.3
+

patches/d3d9-Surface_Refcount/definition

@@ -0,0 +1,4 @@
+Author: Henri Verbeet
+Subject: Don't decrease surface refcount when its already zero.
+Revision: 1
+Fixes: [18477] Avoid crashing when broken app tries to release surface although refcount is zero