IoGetAttachedDevice

NTSTATUS __fastcall IoGetAttachedDevice(INT64 a1){
  __int64 i; 

  for( i = *(_QWORD *)(a1 + 24); i; i = *(_QWORD *)(i + 24) )
    LODWORD(a1) = i;
  return a1;
}

Referenced by:

FsRtlQueryOpen
IoAdjustStackSizeForRedirection
IoGetAttachedDeviceReferenceWithTag
IopAttachDeviceToDeviceStackSafe
IopCloseFile
IopCopyOffloadCapable
IopDeleteFile
IopParseDevice
IopShutdownBaseFileSystems
IopXxxControlFile
NtQueryInformationFile
NtSetInformationFile
NtUnlockFile
PipSendGuestAssignedNotification
VfFilterAttach