78 	ssize_t f_retval;  in state_show()  local
86 		f_retval = -ENODEV;  in state_show()
94 		f_retval = -EIO;  in state_show()
99 	f_retval = 1;  in state_show()
105 	return f_retval;  in state_show()
115 	ssize_t f_retval;  in output_show()  local
123 		f_retval = ret;  in output_show()
128 	f_retval = 1;  in output_show()
134 	return f_retval;  in output_show()
146 	ssize_t f_retval;  in output_store()  local
157 	f_retval = ret;  in output_store()
165 		f_retval = current_pio;  in output_store()
173 		f_retval = -ENODEV;  in output_store()
195 	return f_retval;  in output_store()