[PATCH 3/4] winegstreamer: Handle null transform in video IMFTransform::ProcessMessage() FLUSH.

[Conor McCarthy]

From: Conor McCarthy

---
 dlls/winegstreamer/video_decoder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/winegstreamer/video_decoder.c b/dlls/winegstreamer/video_decoder.c
index d071b009a49..83fb713d5da 100644
--- a/dlls/winegstreamer/video_decoder.c
+++ b/dlls/winegstreamer/video_decoder.c
@@ -794,7 +794,7 @@ static HRESULT WINAPI transform_ProcessMessage(IMFTransform *iface, MFT_MESSAGE_
         return decoder->wg_transform ? wg_transform_drain(decoder->wg_transform) : MF_E_TRANSFORM_TYPE_NOT_SET;

case MFT_MESSAGE_COMMAND_FLUSH:
-        return wg_transform_flush(decoder->wg_transform);
+        return decoder->wg_transform ? wg_transform_flush(decoder->wg_transform) : MF_E_TRANSFORM_TYPE_NOT_SET;

case MFT_MESSAGE_NOTIFY_START_OF_STREAM:
         decoder->sample_time = -1;