From 2aacbf790af051c95a804603bddec0cabd169c82 Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Tue, 21 Dec 2021 20:24:28 -0500
Subject: [PATCH] handle warning due to not defined last_run

---
 scripts/zmfilter.pl.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/zmfilter.pl.in b/scripts/zmfilter.pl.in
index c0cdf7235..960c090cb 100644
--- a/scripts/zmfilter.pl.in
+++ b/scripts/zmfilter.pl.in
@@ -184,7 +184,7 @@ while (!$zm_terminate) {
   foreach my $filter (@filters) {
     last if $zm_terminate;
 
-    my $elapsed = ($now - $$filter{last_ran});
+    my $elapsed = ($now - ($$filter{last_ran} ? $$filter{last_ran} : 0));
     if ($$filter{last_ran} and ($elapsed < $$filter{ExecuteInterval})) {
       my $filter_delay = $$filter{ExecuteInterval} - ($now - $$filter{last_ran});
       $delay = $filter_delay if $filter_delay < $delay;