1 files changed, 7 insertions, 7 deletions

diff --git a/check_load b/check_load
index 9f76b78..802839c 100755
--- a/check_load
+++ b/check_load
@@ -42,20 +42,20 @@ sub parse_thresholds($) {
     my $arg = shift;
 
     if ($arg) {
-        if ($arg =~ m/([0-9]+),([0-9]+),([0-9]+)/) {
+        if ($arg =~ m/^([0-9]*),([0-9]*),([0-9]*)$/) {
             return ($1, $2, $3);
         }
 
-        if ($arg =~ m/([0-9]+),([0-9]+)/) {
+        if ($arg =~ m/^([0-9]*),([0-9]*)$/) {
             return ($1, $2, $2);
         }
 
-        if ($arg =~ m/([0-9]+)/) {
+        if ($arg =~ m/^([0-9]*)$/) {
             return ($1, $1, $1);
         }
     }
 
-    return (0, 0, 0);
+    return undef;
 }
 
 sub get_load($$) {
@@ -98,9 +98,9 @@ my (%warn, %crit);
 ($crit{'load1'}, $crit{'load5'}, $crit{'load15'}) = parse_thresholds($n->opts->c);
 
 for my $load (qw( load1 load5 load15 )) {
-    if ($crit{$load} < $warn{$load}) {
-        $n->nagios_exit(UNKNOWN, "Parameter inconsistency: warning load" .
-                        "is greater than critical load for '$load'");
+    if (defined $crit{$load} && defined $warn{$load} && $crit{$load} < $warn{$load}) {
+        die("Parameter inconsistency: warning load is greater " .
+            "than critical load for '$load'");
     }
 }