PiProcessQueryAndCancelRemoval

NTSTATUS __stdcall PiProcessQueryAndCancelRemoval(
        INT64 a1,
        INT64 a2,
        UINT64 **a3,
        UINT64 a4,
        VOID **a5,
        INT64 *a6,
        const VOID **a7){
  unsigned int v9; 
  CHAR v10; 
  unsigned int v11; 
  VOID **v12; 
  _UNICODE_STRING *v13; 
  int v14; 
  NTSTATUS RemovalInKernelMode; 
  __int64 v17; 
  char *v18; 
  __int64 v19; 
  __int64 v20; 
  VOID **CriticalMemory; 
  char v22; 
  int v23[3]; 
  unsigned int v24; 

  v24 = a4;
  v9 = a1;
  v23[0] = 0;
  v10 = PiEventAreDeviceRelationsExcluded(a1);
  v12 = (VOID **)v11;
  v22 = v10;
  v13 = (_UNICODE_STRING *)(a6 + 1);
  PnpNotifyUserModeDeviceRemoval(
    a2,
    *a7,
    (__int128 *)&GUID_TARGET_DEVICE_QUERY_REMOVE,
    (__int64)a6,
    (__int64)(a6 + 1),
    v23);
  RemovalInKernelMode = v14;
  if( v14 < 0 )
  {
    PnpFinalizeVetoedRemove(a2, *(_DWORD *)a6, v13);
    if( !v23[0] )
      return RemovalInKernelMode;
    v17 = (unsigned int)v23[0];
    v18 = (char *)*a7;
    do
    {
      v19 = -1i64;
      do
        ++v19;
      while( *(_WORD *)&v18[2 * v19] );
      v18 += 2 * v19 + 2;
      --v17;
    }
    while( v17 );
    v20 = (v18 - (_BYTE *)*a7) >> 1;
    CriticalMemory = PnpAllocateCriticalMemory(v9, PagedPool, 2i64 * (unsigned int)(v20 + 1), 0x4B706E50u);
    v12 = CriticalMemory;
    if( !CriticalMemory )
      return -1073741670;
    memmove(CriticalMemory, *a7, 2 * v20);
    *((_WORD *)v12 + (unsigned int)(v20 + 1) - 1) = 0;
    PnpNotifyUserModeDeviceRemoval(a2, v12, (__int128 *)&GUID_TARGET_DEVICE_REMOVE_CANCELLED, 0i64, 0i64, 0i64);
    goto LABEL_15;
  }
  RemovalInKernelMode = PipProcessQueryRemovalInKernelMode(v9, a2, (INT64)a3, v24, a5, (INT64)a6);
  if( RemovalInKernelMode < 0 )
  {
    PnpFinalizeVetoedRemove(a2, *(_DWORD *)a6, v13);
    PnpNotifyUserModeDeviceRemoval(a2, *a7, (__int128 *)&GUID_TARGET_DEVICE_REMOVE_CANCELLED, 0i64, 0i64, 0i64);
    return RemovalInKernelMode;
  }
  if( *(_DWORD *)(a2 + 16) == 54 )
  {
    RemovalInKernelMode = PnpCancelRemoveOnHungDevices(a2, v9, v22, (_RELATION_LIST *)a3, a7);
LABEL_15:
    if( v12 )
      ExFreePoolWithTag(v12, 0x4B706E50u);
  }
  return RemovalInKernelMode;
}

Referenced by: