NTSTATUS __stdcall IoClearFsTrackOffsetState(_IRP *Irp){ _IRP_EXTENSION_TYPE v1; _IRP *v2; if( !IopIrpHasExtensionType(Irp, 5ui64) ) return -1073741275; IopFreeIrpExtension(v2, v1, 0); return 0; }