timeconst.pl: Eliminate Perl warning

defined(@array) is deprecated in Perl and gives off a warning.
Restructure the code to remove that warning.

[ hpa: it would be interesting to revert to the timeconst.bc script.
  It appears that the failures reported by akpm during testing of
  that script was due to a known broken version of make, not a problem
  with bc.  The Makefile rules could probably be restructured to avoid
  the make bug, or it is probably old enough that it doesn't matter. ]

Reported-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@vger.kernel.org>

diff --git a/kernel/timeconst.pl b/kernel/timeconst.pl
index eb51d76e058a401477776e279fba95c95a315a4a..3f42652a6a3749ca2b17dbaf397e483a3f2e6667 100644 (file)
--- a/kernel/timeconst.pl
+++ b/kernel/timeconst.pl
@@ -369,10 +369,8 @@ if ($hz eq '--can') {
                die "Usage: $0 HZ\n";
        }
 
-       @val = @{$canned_values{$hz}};
-       if (!defined(@val)) {
-               @val = compute_values($hz);
-       }
+       $cv = $canned_values{$hz};
+       @val = defined($cv) ? @$cv : compute_values($hz);
        output($hz, @val);
 }
 exit 0;