456 	struct pti_tty *pti_tty_data;  in pti_tty_install()  local
460 		pti_tty_data = kmalloc(sizeof(struct pti_tty), GFP_KERNEL);  in pti_tty_install()
461 		if (pti_tty_data == NULL)  in pti_tty_install()
465 			pti_tty_data->mc = pti_request_masterchannel(0, NULL);  in pti_tty_install()
467 			pti_tty_data->mc = pti_request_masterchannel(2, NULL);  in pti_tty_install()
469 		if (pti_tty_data->mc == NULL) {  in pti_tty_install()
470 			kfree(pti_tty_data);  in pti_tty_install()
473 		tty->driver_data = pti_tty_data;  in pti_tty_install()
487 	struct pti_tty *pti_tty_data = tty->driver_data;  in pti_tty_cleanup()  local
488 	if (pti_tty_data == NULL)  in pti_tty_cleanup()
490 	pti_release_masterchannel(pti_tty_data->mc);  in pti_tty_cleanup()
491 	kfree(pti_tty_data);  in pti_tty_cleanup()
510 	struct pti_tty *pti_tty_data = tty->driver_data;  in pti_tty_driver_write()  local
511 	if ((pti_tty_data != NULL) && (pti_tty_data->mc != NULL)) {  in pti_tty_driver_write()
512 		pti_write_to_aperture(pti_tty_data->mc, (u8 *)buf, len);  in pti_tty_driver_write()