arm patch for ioperm

[Philip Blundell]

This makes ioperm give more consistent and illuminating error codes on
unsupported systems; it's mostly a sop for XFree86, which doesn't run on
some machines otherwise.  I'd ideally like this to go into both the 2.2
branch and mainline.

Thanks

p.

2002-07-24  Philip Blundell  <philb@gnu.org>

	* sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Yield ENODEV
	on unknown systems.

Index: sysdeps/unix/sysv/linux/arm/ioperm.c
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/arm/ioperm.c,v
retrieving revision 1.5
diff -u -p -r1.5 ioperm.c
--- sysdeps/unix/sysv/linux/arm/ioperm.c	6 Jul 2001 04:56:13 -0000	1.5
+++ sysdeps/unix/sysv/linux/arm/ioperm.c	24 Jul 2002 11:39:30 -0000
@@ -166,7 +166,7 @@ init_iosys (void)
     }
 
   /* systype is not a known platform name... */
-  __set_errno (EINVAL);
+  __set_errno (ENODEV);
   return -1;
 }