qedit/nullrenderer: Don't drop csRenderLock in NullRenderer_DoRenderSample().

We don't grab stream_cs to change any variables checked here, except to reset flush_event, and that cannot result in a deadlock. The only possible deadlocks here are: (1) between this function and EndOfStream(), which is correct, as the two should presumably be serialized; (2) between this function and EndFlush(); however, in that case we expect BeginFlush() first, which will unblock the streaming thread. Signed-off-by: Zebediah Figura <z.figura12@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

qedit/nullrenderer: Don't drop csRenderLock in NullRenderer_DoRenderSample().
8a75411e · Zebediah Figura · Alexandre Julliard · 6f05c692 · 8a75411e
Commit 8a75411e authored Nov 30, 2020 by Zebediah Figura Committed by Alexandre Julliard Dec 01, 2020
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nullrenderer.c dlls/qedit/nullrenderer.c +0 -2

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--- a/dlls/qedit/nullrenderer.c
+++ b/dlls/qedit/nullrenderer.c
@@ -46,9 +46,7 @@ static HRESULT WINAPI NullRenderer_DoRenderSample(struct strmbase_renderer *ifac
        const HANDLE events[2] = {filter->run_event, filter->renderer.flush_event};

        SetEvent(filter->renderer.state_event);
-        LeaveCriticalSection(&filter->renderer.csRenderLock);
        WaitForMultipleObjects(2, events, FALSE, INFINITE);
-        EnterCriticalSection(&filter->renderer.csRenderLock);
    }

    return S_OK;