mfreadwrite: Output warning for uninitialized stream descriptor.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

mfreadwrite: Output warning for uninitialized stream descriptor.
3e8b14ad · Nikolay Sivov · Alexandre Julliard · eb508e5a · 3e8b14ad
Commit 3e8b14ad authored Apr 18, 2019 by Nikolay Sivov Committed by Alexandre Julliard Apr 18, 2019
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main.c dlls/mfreadwrite/main.c +7 -1

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--- a/dlls/mfreadwrite/main.c
+++ b/dlls/mfreadwrite/main.c
@@ -727,7 +727,13 @@ static DWORD reader_get_first_stream_index(IMFPresentationDescriptor *descriptor
            {
                hr = IMFMediaTypeHandler_GetMajorType(handler, &guid);
                IMFMediaTypeHandler_Release(handler);
-                if (SUCCEEDED(hr) && IsEqualGUID(&guid, major))
+                if (FAILED(hr))
+                {
+                    WARN("Failed to get stream major type, hr %#x.\n", hr);
+                    continue;
+                }
+
+                if (IsEqualGUID(&guid, major))
                {
                    return i;
                }