Zebediah Figura : amstream: Release the previous ddraw in ddraw_IAMMediaStream_Initialize().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 97d7d321919e95c06c356fd3c32ae24d6fd0a362
URL:    https://gitlab.winehq.org/wine/wine/-/commit/97d7d321919e95c06c356fd3c32ae24...

Author: Zebediah Figura <zfigura(a)codeweavers.com>
Date:   Sat Jul 22 21:06:53 2023 -0500

amstream: Release the previous ddraw in ddraw_IAMMediaStream_Initialize().

---

 dlls/amstream/ddrawstream.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/amstream/ddrawstream.c b/dlls/amstream/ddrawstream.c
index 77795be47fa..b31466803f4 100644
--- a/dlls/amstream/ddrawstream.c
+++ b/dlls/amstream/ddrawstream.c
@@ -324,6 +324,10 @@ static HRESULT WINAPI ddraw_IAMMediaStream_Initialize(IAMMediaStream *iface, IUn
     stream->purpose_id = *purpose_id;
     stream->stream_type = stream_type;
 
+    if (stream->ddraw)
+        IDirectDraw_Release(stream->ddraw);
+    stream->ddraw = NULL;
+
     if (source_object
             && FAILED(hr = IUnknown_QueryInterface(source_object, &IID_IDirectDraw, (void **)&stream->ddraw)))
         FIXME("Stream object doesn't implement IDirectDraw interface, hr %#lx.\n", hr);