1 files changed, 2 insertions, 2 deletions

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 1fd29b2daa9..8dc8c3cf3ac 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1638,7 +1638,7 @@ sub run_config_bisect {
         if (!$found) {
             # try the other half
             doprint "Top half produced no set configs, trying bottom half\n";
-            @tophalf = @start_list[$half .. $#start_list];
+            @tophalf = @start_list[$half + 1 .. $#start_list];
             create_config @tophalf;
             read_current_config \%current_config;
             foreach my $config (@tophalf) {
@@ -1690,7 +1690,7 @@ sub run_config_bisect {
         # remove half the configs we are looking at and see if
         # they are good.
         $half = int($#start_list / 2);
-    } while ($half > 0);
+    } while ($#start_list > 0);
 
     # we found a single config, try it again unless we are running manually