* Fixed crash bug caused by multiple sources going on- and offline at a time.

ChangeLog

@@ -1,3 +1,6 @@
+Version 0.0.4:
+    * Fixed a crash situation caused by sources going on- or offline.
+
 Version 0.0.3:
     * Show spinner while resolving playlists.
     * Go back to previous page visible when deleting a playlist.

src/libtomahawk/query.cpp

@@ -89,10 +89,13 @@ Query::refreshResults()
 void
 Query::onResultStatusChanged()
 {
+    {
+        QMutexLocker lock( &m_mutex );
         if ( m_results.count() )
             qStableSort( m_results.begin(), m_results.end(), Query::resultSorter );
-    checkResults();
+    }
 
+    checkResults();
     emit resultsChanged();
 }
 
@@ -180,6 +183,9 @@ Query::checkResults()
 {
     bool becameSolved = false;
     bool becameUnsolved = true;
+    {
+        QMutexLocker lock( &m_mutex );
+
         m_playable = false;
 
         // hook up signals, and check solved status
@@ -205,6 +211,7 @@ Query::checkResults()
                 }
             }
         }
+    }
 
     if ( m_solved && becameUnsolved )
     {