--- lp.c.old	Sun Feb 24 18:19:59 2002
+++ lp.c	Sun Feb 24 18:20:57 2002
@@ -806,7 +806,7 @@
 			LP_WAIT(minor) = arg;
 			break;
 		case LPSETIRQ: 
-			return -EINVAL;
+			return -ENOSYS;
 			break;
 		case LPGETIRQ:
 			if (copy_to_user((int *) arg, &LP_IRQ(minor),