125 				  struct scsi_device_handler *scsi_dh)  in scsi_dh_handler_attach()  argument
129 	if (!try_module_get(scsi_dh->module))  in scsi_dh_handler_attach()
132 	error = scsi_dh->attach(sdev);  in scsi_dh_handler_attach()
151 				    scsi_dh->name, error);  in scsi_dh_handler_attach()
152 		module_put(scsi_dh->module);  in scsi_dh_handler_attach()
154 		sdev->handler = scsi_dh;  in scsi_dh_handler_attach()
199 int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)  in scsi_register_device_handler()  argument
201 	if (__scsi_dh_lookup(scsi_dh->name))  in scsi_register_device_handler()
204 	if (!scsi_dh->attach || !scsi_dh->detach)  in scsi_register_device_handler()
208 	list_add(&scsi_dh->list, &scsi_dh_list);  in scsi_register_device_handler()
211 	printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);  in scsi_register_device_handler()
224 int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)  in scsi_unregister_device_handler()  argument
226 	if (!__scsi_dh_lookup(scsi_dh->name))  in scsi_unregister_device_handler()
230 	list_del(&scsi_dh->list);  in scsi_unregister_device_handler()
232 	printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);  in scsi_unregister_device_handler()
323 	struct scsi_device_handler *scsi_dh;  in scsi_dh_attach()  local
330 	scsi_dh = scsi_dh_lookup(name);  in scsi_dh_attach()
331 	if (!scsi_dh) {  in scsi_dh_attach()
337 		if (sdev->handler != scsi_dh)  in scsi_dh_attach()
342 	err = scsi_dh_handler_attach(sdev, scsi_dh);  in scsi_dh_attach()