Józef Kucia : libs/vkd3d: Return S_FALSE from D3D12CreateDevice() when device is NULL.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 9ce53b74df1b6417a9e1dd9bdbf5f422a9172dee
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=9ce53b74df1b6417a9e1dd9b...

Author: Józef Kucia 
Date:   Thu Jul 19 14:47:42 2018 +0200

libs/vkd3d: Return S_FALSE from D3D12CreateDevice() when device is NULL.

Signed-off-by: Józef Kucia 
Signed-off-by: Henri Verbeet 
Signed-off-by: Alexandre Julliard

---

libs/vkd3d/vkd3d_main.c | 8 +++++++-
 tests/d3d12.c           | 3 +++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d/vkd3d_main.c b/libs/vkd3d/vkd3d_main.c
index 97d642a..0e2d422 100644
--- a/libs/vkd3d/vkd3d_main.c
+++ b/libs/vkd3d/vkd3d_main.c
@@ -28,7 +28,7 @@ HRESULT vkd3d_create_device(const struct vkd3d_device_create_info *create_info,

TRACE("create_info %p, iid %s, device %p.\n", create_info, debugstr_guid(iid), device);

-    if (!create_info || !device)
+    if (!create_info)
         return E_INVALIDARG;
     if (create_info->type != VKD3D_STRUCTURE_TYPE_DEVICE_CREATE_INFO)
     {
@@ -76,6 +76,12 @@ HRESULT vkd3d_create_device(const struct vkd3d_device_create_info *create_info,
     if (FAILED(hr))
         return hr;

+    if (!device)
+    {
+        ID3D12Device_Release(&object->ID3D12Device_iface);
+        return S_FALSE;
+    }
+
     return return_interface((IUnknown *)&object->ID3D12Device_iface, &IID_ID3D12Device,
             iid, device);
 }
diff --git a/tests/d3d12.c b/tests/d3d12.c
index 6128a40..e2337c4 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -1080,6 +1080,9 @@ static void test_create_device(void)
     ok(hr == S_OK, "Failed to create device, hr %#x.\n", hr);
     ID3D12Device_Release(device);

+    hr = D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_11_0, &IID_ID3D12Device, NULL);
+    ok(hr == S_FALSE, "Got unexpected hr %#x.\n", hr);
+
     hr = D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_9_1, &IID_ID3D12Device, (void **)&device);
     ok(hr == E_INVALIDARG, "Got unexpected hr %#x.\n", hr);
     hr = D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_9_2, &IID_ID3D12Device, (void **)&device);