Fix crash in systray notification when folders are deleted. (#89520)

svn path=/trunk/kdepim/; revision=347173

kmsystemtray.cpp

@@ -482,10 +482,12 @@ void KMSystemTray::updateNewMessageNotification(KMFolder * fldr)
 
 void KMSystemTray::updateNewMessages()
 {
-  for ( QMap<KMFolder*, bool>::Iterator it = mPendingUpdates.begin();
+  for ( QMap<QGuardedPtr<KMFolder>, bool>::Iterator it = mPendingUpdates.begin();
         it != mPendingUpdates.end(); ++it)
   {
   KMFolder *fldr = it.key();
+  if ( !fldr ) // deleted folder
+    continue;
 
   /** The number of unread messages in that folder */
   int unread = fldr->countUnread();

kmsystemtray.h

@@ -84,7 +84,7 @@ private:
 
   QPtrVector<KMFolder> mPopupFolders;
   QMap<QGuardedPtr<KMFolder>, int> mFoldersWithUnread;
-  QMap<KMFolder*, bool> mPendingUpdates;
+  QMap<QGuardedPtr<KMFolder>, bool> mPendingUpdates;
   QTimer *mUpdateTimer;
   time_t mLastUpdate;
 };