PnpUnregisterPlugPlayNotification

__int64 __fastcall PnpUnregisterPlugPlayNotification(PVOID P, char a2){
  _FAST_MUTEX *v2; 
  char v5; 
  INT64 v6; 
  _ETHREAD *CurrentThread; 
  PVOID *v9; 
  PVOID *v10; 
  PVOID *v11; 
  PVOID *v12; 
  PVOID **v13; 

  v2 = (_FAST_MUTEX *)*((_QWORD *)P + 8);
  v5 = 0;
  ExAcquireFastMutex((PFAST_MUTEX)((char *)&PnpReplaceEvent + 64));
  if( BYTE2(NlsMbCodePageTag) )
  {
    ExAcquireFastMutex((PFAST_MUTEX)((char *)&stru_140C452E0 + 128));
    v9 = (PVOID *)PnpDeferredRegistrationList;
    while( v9 != &PnpDeferredRegistrationList )
    {
      v10 = v9 + 2;
      v11 = v9;
      if( v9[2] == P )
      {
        v5 = 1;
        if( v2 )
          ExAcquireFastMutex(v2);
        v12 = (PVOID *)*v9;
        v9 = v12;
        if( v12[1] != v11 || (v13 = (PVOID **)v11[1], *v13 != v11) )
          __fastfail(3u);
        *v13 = v12;
        v12[1] = v13;
        PnpDereferenceNotify(*v10);
        if( v2 )
          KeReleaseGuardedMutex(v2);
        ExFreePoolWithTag(v11, 0x37706E50u);
      }
      else
      {
        v9 = (PVOID *)*v9;
      }
    }
    KeReleaseGuardedMutex((PKGUARDED_MUTEX)((char *)&stru_140C452E0 + 128));
  }
  KeReleaseGuardedMutex((PKGUARDED_MUTEX)((char *)&PnpReplaceEvent + 64));
  if( a2 )
  {
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    --CurrentThread->Tcb.KernelApcDisable;
    ExAcquireResourceExclusiveLite(*((_QWORD *)P + 9), 1, v6);
  }
  else if( v2 )
  {
    ExAcquireFastMutex(v2);
  }
  if( !*((_BYTE *)P + 58) || v5 )
  {
    *((_BYTE *)P + 58) = 1;
    if( a2 )
    {
      ExReleaseResourceLite(*((PERESOURCE *)P + 9));
      KeLeaveCriticalRegionThread(KeGetCurrentThread());
      if( v2 )
        ExAcquireFastMutex(v2);
    }
    PnpDereferenceNotify(P);
  }
  else if( a2 )
  {
    ExReleaseResourceLite(*((PERESOURCE *)P + 9));
    KeLeaveCriticalRegionThread(KeGetCurrentThread());
    return 0i64;
  }
  if( v2 )
    KeReleaseGuardedMutex(v2);
  return 0i64;
}

Referenced by: