According both to POSIX.1-2008 and Linux Programmer's Manual mmap()
syscall shouldn't return undocumented ENOSYS, this change replaces
the errno with more appropriate ENODEV and EACCESS.
Signed-off-by: NVladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>