From 0c27a1ab0e8672d41c3429211f737850c6274c96 Mon Sep 17 00:00:00 2001
From: cketti <cketti@googlemail.com>
Date: Fri, 3 Sep 2010 00:56:19 +0000
Subject: [PATCH] Avoid division by zero.

Fixes issue 2259
---
 src/com/fsck/k9/activity/MessageList.java | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/com/fsck/k9/activity/MessageList.java b/src/com/fsck/k9/activity/MessageList.java
index 262110a77..b5a077e89 100644
--- a/src/com/fsck/k9/activity/MessageList.java
+++ b/src/com/fsck/k9/activity/MessageList.java
@@ -308,10 +308,14 @@ public class MessageList
 
             if (mCurrentFolder != null && mCurrentFolder.loading && mAdapter.mListener.getFolderTotal() > 0)
             {
-                level = (Window.PROGRESS_END / mAdapter.mListener.getFolderTotal()) * (mAdapter.mListener.getFolderCompleted()) ;
-                if (level > Window.PROGRESS_END)
+                int divisor = mAdapter.mListener.getFolderTotal();
+                if (divisor != 0)
                 {
-                    level = Window.PROGRESS_END;
+                    level = (Window.PROGRESS_END / divisor) * (mAdapter.mListener.getFolderCompleted()) ;
+                    if (level > Window.PROGRESS_END)
+                    {
+                        level = Window.PROGRESS_END;
+                    }
                 }
             }
 
@@ -2061,7 +2065,7 @@ public class MessageList
         private void addOrUpdateMessages(final Account account, final String folder, final List<Message> providedMessages, final boolean verifyAgainstSearch)
         {
             // we copy the message list because the callback doesn't expect
-            // the callbacks to mutate it. 
+            // the callbacks to mutate it.
             final List<Message> messages = new ArrayList<Message>(providedMessages);
 
             runOnUiThread(new Runnable()