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(_ioperm): Map all ports starting from 0 not only from `from'.

This commit is contained in:
Ulrich Drepper 1998-02-16 18:13:11 +00:00
parent 4fba2352f8
commit d7d1f4badd
1 changed files with 2 additions and 3 deletions
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5
sysdeps/unix/sysv/linux/alpha/ioperm.c
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@ -1,4 +1,4 @@
/* Copyright (C) 1992, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Mosberger.
@ -416,8 +416,7 @@ _ioperm (unsigned long int from, unsigned long int num, int turn_on)
__set_errno (ENODEV);
return -1;
}
addr = port_to_cpu_addr (from, io.sys, 1);
addr &= PAGE_MASK;
addr = port_to_cpu_addr (0, io.sys, 1);
len = port_to_cpu_addr (MAX_PORT, io.sys, 1) - addr;
io.base =
(unsigned long int) __mmap (0, len, PROT_NONE, MAP_SHARED,