PnpReallocateResources

void __fastcall PnpReallocateResources(ULONG_PTR a1){
  _ETHREAD *CurrentThread; 
  int v3; 
  INT64 v4; 
  _DEVICE_OBJECT *v5; 
  unsigned int v6; 
  int v7; 
  int BestConfiguration; 
  int started; 
  int v10; 
  int v11; 
  INT64 v12; 
  int v13; 
  LIST_ENTRY ArbiterList; 
  _PNP_RESOURCE_REQUEST result; 
  _BYTE vars0[24]; 
  UINT64 DeviceCount; 
  memset((INT64)&result, 0i64);
  LODWORD(DeviceCount) = 0;
  ArbiterList = 0i64;
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --*((_WORD *)CurrentThread + 242);
  KeWaitForSingleObject(&PpRegistrySemaphore, DelayExecution, 0, 0, 0i64);
  if( (*(_DWORD *)(a1 + 396) & 0x400) == 0 )
    goto LABEL_17;
  v3 = *(_DWORD *)(a1 + 396) & 0x100;
  PipClearDevNodeFlags((_DEVICE_NODE *)a1, 0x100ui64);
  if( (*(_DWORD *)(a1 + 396) & 0x800) != 0 )
  {
    v5 = *(_DEVICE_OBJECT **)(a1 + 32);
    result.ResourceRequirements = 0i64;
    result.Flags |= 0x280u;
    result.PhysicalDevice = v5;
    result.AllocationType = ArbiterRequestPnpEnumerated;
    PnpGetResourceRequirementsForAssignTable(&result, (_PNP_RESOURCE_REQUEST *)vars0, &DeviceCount, v4);
    v6 = DeviceCount;
    BestConfiguration = v7;
    if( !(_DWORD)DeviceCount )
      goto LABEL_15;
    if( *(_QWORD *)(a1 + 416) )
      PnpReleaseResourcesInternal((_DEVICE_NODE *)a1);
    BestConfiguration = PnpFindBestConfiguration((INT64)&result, v6, (INT64 **)&ArbiterList);
    if( BestConfiguration < 0 || (BestConfiguration = IopCommitConfiguration(&ArbiterList), BestConfiguration < 0) )
    {
      v13 = PnpRestoreResourcesInternal(a1);
      if( v13 < 0 )
      {
        PnpUpdateRebootRequiredReason(*(_QWORD *)(a1 + 48), v12, 0x4000i64);
        v10 = v13;
        v11 = 14;
        goto LABEL_12;
      }
    }
    else
    {
      PipClearDevNodeFlags((_DEVICE_NODE *)a1, 0xC00ui64);
      PnpBuildCmResourceLists((UINT64)&result, (UINT64)vars0, 1);
      started = PnpStartDeviceNode(a1, 1, 1);
      BestConfiguration = started;
      if( started < 0 )
      {
        v10 = started;
        v11 = 12;
LABEL_12:
        PnpRequestDeviceRemoval(a1, 0, v11, v10);
      }
    }
    PnpFreeResourceRequirementsForAssignTable(&result, (_PNP_RESOURCE_REQUEST *)vars0);
    goto LABEL_15;
  }
  BestConfiguration = PnpRebalance(a1, 0i64, 0i64, 0);
LABEL_15:
  if( BestConfiguration < 0 )
  {
    PipClearDevNodeFlags((_DEVICE_NODE *)a1, 0x100ui64);
    PipSetDevNodeFlags(a1, v3);
  }
LABEL_17:
  KeReleaseSemaphore(&PpRegistrySemaphore, 0i64, 1i64, 0);
  KeLeaveCriticalRegion();
}

Referenced by: