From f86a7ee0dfb22b5a14fc8d8f2e3907f7d1bc8fda Mon Sep 17 00:00:00 2001
From: David Hampton <mythtv@love2code.net>
Date: Sat, 25 Jun 2022 23:55:35 -0400
Subject: [PATCH] Protect ProgramInfo::CalculateRecordedProgress against divide
 by zero.

Refs #596.
---
 mythtv/libs/libmyth/programinfo.cpp | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/mythtv/libs/libmyth/programinfo.cpp b/mythtv/libs/libmyth/programinfo.cpp
index 51ac97528c4..e03baff70cf 100644
--- a/mythtv/libs/libmyth/programinfo.cpp
+++ b/mythtv/libs/libmyth/programinfo.cpp
@@ -6375,23 +6375,21 @@ uint64_t ProgramInfo::GetFilesize(void) const
 
 void ProgramInfo::CalculateRecordedProgress()
 {
+    m_recordedPercent = -1;
     if (m_recStatus != RecStatus::Recording)
-    {
-        m_recordedPercent = -1;
         return;
-    }
 
     QDateTime startTime = m_recStartTs;
     QDateTime now = MythDate::current();
     if (now < startTime)
-    {
-        m_recordedPercent = -1;
         return;
-    }
 
     QDateTime endTime = m_recEndTs;
     int current = startTime.secsTo(now);
     int duration = startTime.secsTo(endTime);
+    if (duration < 1)
+        return;
+
     m_recordedPercent = std::clamp(current * 100 / duration, 0, 100);
     LOG(VB_GUI, LOG_DEBUG, QString("%1 recorded percent %2/%3 = %4%")
         .arg(m_title).arg(current).arg(duration).arg(m_recordedPercent));