*** ft.c.old	Tue Nov 15 10:13:46 1994
--- ft.c	Sat Dec  3 18:49:21 1994
***************
*** 2057,2062 ****
--- 2057,2064 ----
    if (ftu >= NFT) 
  	return(ENXIO);
    fdc = ft_data[ftu].fdc;
+   if ((fdc == NULL) || (ft_data[ftu].type == NO_TYPE))
+ 	  return(ENXIO);
    /* check for controller already busy with tape */
    if (fdc->flags & FDC_TAPE_BUSY)
  	return(EBUSY);