From 2dcc70301c83ef89d6c7cdc178612b35058ce268 Mon Sep 17 00:00:00 2001
From: Tony Murray <murraytony@gmail.com>
Date: Wed, 2 Feb 2022 10:31:54 -0600
Subject: [PATCH] Fix < 0 exception in ports poller (#13732)

---
 includes/polling/ports.inc.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/includes/polling/ports.inc.php b/includes/polling/ports.inc.php
index b7c016e6a3..25f542857a 100644
--- a/includes/polling/ports.inc.php
+++ b/includes/polling/ports.inc.php
@@ -796,6 +796,7 @@ foreach ($ports as $port) {
                     $oid_rate = ($oid_diff / $polled_period);
                     if ($oid_rate < 0) {
                         $oid_rate = '0';
+                        $oid_diff = '0';
                         echo "negative $oid";
                     }