VOID __stdcall IoGetDriverObjectExtension(_DRIVER_OBJECT *DriverObject, PVOID ClientIdentificationAddress){
KIRQL v4;
_IO_CLIENT_EXTENSION *i;
v4 = KeAcquireQueuedSpinLock(0xAui64);
for( i = DriverObject->DriverExtension->ClientDriverExtension;
i && i->ClientIdentificationAddress != ClientIdentificationAddress;
i = i->NextExtension )
{
;
}
KeReleaseQueuedSpinLock(0xAui64, v4);
}