76 	int retval = -EEXIST;  in n_tracesink_open()  local
82 			retval = -EFAULT;  in n_tracesink_open()
86 			retval = 0;  in n_tracesink_open()
91 	return retval;  in n_tracesink_open()
211 	int retval = tty_register_ldisc(N_TRACESINK, &tty_n_tracesink);  in n_tracesink_init()  local
213 	if (retval < 0)  in n_tracesink_init()
214 		pr_err("%s: Registration failed: %d\n", __func__, retval);  in n_tracesink_init()
216 	return retval;  in n_tracesink_init()
226 	int retval = tty_unregister_ldisc(N_TRACESINK);  in n_tracesink_exit()  local
228 	if (retval < 0)  in n_tracesink_exit()
229 		pr_err("%s: Unregistration failed: %d\n", __func__,  retval);  in n_tracesink_exit()