fix: lp.c wrong return code

[<WHarms@bfs.de> (Walter Harms)]

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hi,
how takes care about the lp driver ? i saw some changes in the 2.4 but found no maintainer.
to the maintainer:
LPGETSTATS is strange. first you set LP_STAT then you delete it. maybe a EACCES (Permission denied) would do it ?



problem:
calling the ioctl( LPSETIRQ ) the driver returns EINVAL (Invalid argument)instead of ENOSYS.

Fix : return ENOSYS (Function not implemented)

NOTE:
if EINVAL is correct, you can delete the entiere entry, EINVAL in default.



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--- 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),