D3D12MA_DEBUG_GLOBAL_MUTEX causes double lock on Release

[Armageddonw]

Defining D3D12MA_DEBUG_GLOBAL_MUTEX causes double locking of static debug std::mutex when releasing resources.

See IUnknownImpl::Release():

ULONG STDMETHODCALLTYPE IUnknownImpl::Release()
{
    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK

    const uint32_t newRefCount = --m_RefCount;
    if(newRefCount == 0)
        ReleaseThis();
    return newRefCount;
}

When m_RefCount == 0, ReleaseThis(), tries to acquire debug lock again:

void Allocator::ReleaseThis()
{
    D3D12MA_DEBUG_GLOBAL_MUTEX_LOCK
    ...
}

Resulting in std::system_exception being thrown.

[adam-sawicki-a]

Thank you for finding this. It has been fixed.