[PATCH 3/5] d3d11: Forbid map types other than DISCARD and NOOVERWRITE on a deferred context.

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 dlls/d3d11/device.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/d3d11/device.c b/dlls/d3d11/device.c
index 56f34c70ea1..d043af7051a 100644
--- a/dlls/d3d11/device.c
+++ b/dlls/d3d11/device.c
@@ -744,6 +744,10 @@ static HRESULT STDMETHODCALLTYPE d3d11_device_context_Map(ID3D11DeviceContext1 *
     if (map_flags)
         FIXME("Ignoring map_flags %#x.\n", map_flags);

+    if (context->type != D3D11_DEVICE_CONTEXT_IMMEDIATE
+            && map_type != D3D11_MAP_WRITE_DISCARD && map_type != D3D11_MAP_WRITE_NO_OVERWRITE)
+        return E_INVALIDARG;
+
     wined3d_resource = wined3d_resource_from_d3d11_resource(resource);

wined3d_mutex_lock();