Re: [PATCH v7 0/4] MR3319: evr: Leave critical section before waiting for streaming thread.

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/evr/sample.c:
> -
> - if (allocator->callback)
> -
>    IMFVideoSampleAllocatorNotify_NotifyRelease(allocator->callback);
> -
> -
>
> callback = allocator->callback;
> -
>
> if (callback && allocator->lock_notify_release)
> -
>
> {
> -
>    IMFVideoSampleAllocatorNotify_NotifyRelease(callback);
> -
>    callback = NULL;
> -
>
> }
> LeaveCriticalSection(&allocator->cs);
> -
>
> if (callback)
> -
>    IMFVideoSampleAllocatorNotify_NotifyRelease(callback);
> -
>
> return S_OK;

Now there is a chance that "callback" itself is released before you get to NotifyRelease().