From fc8268c1a6000d0907491756631e78a33a7c9336 Mon Sep 17 00:00:00 2001
From: Friedemann Kleint <Friedemann.Kleint@digia.com>
Date: Mon, 3 Nov 2014 16:43:14 +0100
Subject: QMngHandler: Prevent division by zero.

Task-number: QTBUG-42321
Change-Id: I1d0762782e71fb13f96d0f42c4661b708e02051d
Reviewed-by: aavit <eirik.aavitsland@theqtcompany.com>
---
 src/plugins/imageformats/mng/qmnghandler.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/imageformats/mng/qmnghandler.cpp b/src/plugins/imageformats/mng/qmnghandler.cpp
index eefb056..eabd12a 100644
--- a/src/plugins/imageformats/mng/qmnghandler.cpp
+++ b/src/plugins/imageformats/mng/qmnghandler.cpp
@@ -341,7 +341,8 @@ bool QMngHandlerPrivate::jumpToImage(int imageNumber)
 
 bool QMngHandlerPrivate::jumpToNextImage()
 {
-    return jumpToImage((currentImageNumber()+1) % imageCount());
+    const int numImages = imageCount();
+    return numImages && jumpToImage((currentImageNumber() + 1) % numImages);
 }
 
 int QMngHandlerPrivate::nextImageDelay() const
-- 
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