476 	struct parport_sysctl_table *t;  in parport_proc_register()  local
479 	t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);  in parport_proc_register()
480 	if (t == NULL)  in parport_proc_register()
483 	t->device_dir[0].extra1 = port;  in parport_proc_register()
486 		t->vars[i].extra1 = port;  in parport_proc_register()
488 	t->vars[0].data = &port->spintime;  in parport_proc_register()
489 	t->vars[5].child = t->device_dir;  in parport_proc_register()
492 		t->vars[6 + i].extra2 = &port->probe_info[i];  in parport_proc_register()
494 	t->port_dir[0].procname = port->name;  in parport_proc_register()
496 	t->port_dir[0].child = t->vars;  in parport_proc_register()
497 	t->parport_dir[0].child = t->port_dir;  in parport_proc_register()
498 	t->dev_dir[0].child = t->parport_dir;  in parport_proc_register()
500 	t->sysctl_header = register_sysctl_table(t->dev_dir);  in parport_proc_register()
501 	if (t->sysctl_header == NULL) {  in parport_proc_register()
502 		kfree(t);  in parport_proc_register()
503 		t = NULL;  in parport_proc_register()
505 	port->sysctl_table = t;  in parport_proc_register()
512 		struct parport_sysctl_table *t = port->sysctl_table;  in parport_proc_unregister()  local
514 		unregister_sysctl_table(t->sysctl_header);  in parport_proc_unregister()
515 		kfree(t);  in parport_proc_unregister()
522 	struct parport_device_sysctl_table *t;  in parport_device_proc_register()  local
525 	t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);  in parport_device_proc_register()
526 	if (t == NULL)  in parport_device_proc_register()
529 	t->dev_dir[0].child = t->parport_dir;  in parport_device_proc_register()
530 	t->parport_dir[0].child = t->port_dir;  in parport_device_proc_register()
531 	t->port_dir[0].procname = port->name;  in parport_device_proc_register()
532 	t->port_dir[0].child = t->devices_root_dir;  in parport_device_proc_register()
533 	t->devices_root_dir[0].child = t->device_dir;  in parport_device_proc_register()
535 	t->device_dir[0].procname = device->name;  in parport_device_proc_register()
536 	t->device_dir[0].child = t->vars;  in parport_device_proc_register()
537 	t->vars[0].data = &device->timeslice;  in parport_device_proc_register()
539 	t->sysctl_header = register_sysctl_table(t->dev_dir);  in parport_device_proc_register()
540 	if (t->sysctl_header == NULL) {  in parport_device_proc_register()
541 		kfree(t);  in parport_device_proc_register()
542 		t = NULL;  in parport_device_proc_register()
544 	device->sysctl_table = t;  in parport_device_proc_register()
551 		struct parport_device_sysctl_table *t = device->sysctl_table;  in parport_device_proc_unregister()  local
553 		unregister_sysctl_table(t->sysctl_header);  in parport_device_proc_unregister()
554 		kfree(t);  in parport_device_proc_unregister()