if(atomic_read(&extracting) != 0) { return -EBUSY; } 
cpci_hp_stop(void){	if(!controller) {		return -ENODEV;	}	if(controller->irq) {		/* Stop enum interrupt processing */		dbg("%s - disabling irq", __FUNCTION__);		controller->ops->disable_irq();	}	cpci_stop_thread();	return 0;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/43b7d7cfb157b5c8c5cc0933f4e96fd81adc81ca/cpci_hotplug_core.c/buggy/drivers/pci/hotplug/cpci_hotplug_core.c