From de2eef39d5334f510ceeb61acb954f9c0382d3b9 Mon Sep 17 00:00:00 2001
From: Stuart Morgan <smorgan@mythtv.org>
Date: Fri, 29 Jun 2012 19:14:28 +0100
Subject: [PATCH] Fix integer overflow bug in AutoExpire::CalcParams().

Coverity defect 700589
---
 mythtv/programs/mythbackend/autoexpire.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mythtv/programs/mythbackend/autoexpire.cpp b/mythtv/programs/mythbackend/autoexpire.cpp
index 7d96802a25f..b085cadce5b 100644
--- a/mythtv/programs/mythbackend/autoexpire.cpp
+++ b/mythtv/programs/mythbackend/autoexpire.cpp
@@ -164,8 +164,9 @@ void AutoExpire::CalcParams()
     }
 
     uint64_t maxKBperMin = 0;
-    uint64_t extraKB = gCoreContext->GetNumSetting("AutoExpireExtraSpace", 0) <<
-                     20;
+    uint64_t extraKB = static_cast<uint64_t>
+                        (gCoreContext->GetNumSetting("AutoExpireExtraSpace", 0))
+                          << 20;
 
     QMap<int, uint64_t> fsMap;
     QMap<int, vector<int> > fsEncoderMap;