All QSharedPointers used in different threads need deleteLater as custom deleter. This is some of them.

(cherry picked from commit e3f5605c4e04bd3e5dc55ccafeb2e6fb150cb1e5)

src/libtomahawk/album.cpp

@@ -61,7 +61,7 @@ Album::get( unsigned int id, const QString& name, const Tomahawk::artist_ptr& ar
         return s_albums.value( id );
     }
 
-    album_ptr a = album_ptr( new Album( id, name, artist ) );
+    album_ptr a = album_ptr( new Album( id, name, artist ), &QObject::deleteLater );
     if ( id > 0 )
         s_albums.insert( id, a );
 

src/libtomahawk/artist.cpp

@@ -61,7 +61,7 @@ Artist::get( unsigned int id, const QString& name )
         return s_artists.value( id );
     }
 
-    artist_ptr a = artist_ptr( new Artist( id, name ) );
+    artist_ptr a = artist_ptr( new Artist( id, name ), &QObject::deleteLater );
     if ( id > 0 )
         s_artists.insert( id, a );
 

src/libtomahawk/database/databasecollection.cpp

@@ -142,7 +142,7 @@ DatabaseCollection::autoPlaylistCreated( const source_ptr& source, const QVarian
                                             static_cast<GeneratorMode>(data[6].toInt()),  // dynamic mode
                                             data[7].toBool(),    //shared
                                             data[8].toInt(),     //lastmod
-                                            data[9].toString() ) );  //GUID
+                                            data[9].toString() ), &QObject::deleteLater );  //GUID
     addAutoPlaylist( p );
 }
 
@@ -160,7 +160,7 @@ DatabaseCollection::stationCreated( const source_ptr& source, const QVariantList
                                             static_cast<GeneratorMode>(data[6].toInt()),  // dynamic mode
                                             data[7].toBool(),    //shared
                                             data[8].toInt(),     //lastmod
-                                            data[9].toString() ) );  //GUID
+                                            data[9].toString() ), &QObject::deleteLater );  //GUID
     addStation( p );
 }
 

src/libtomahawk/database/databasecommand_loadallplaylists.cpp

@@ -71,7 +71,7 @@ DatabaseCommand_LoadAllPlaylists::exec( DatabaseImpl* dbi )
                                       query.value(5).toBool(),   //shared
                                       query.value(4).toInt(),    //lastmod
                                       query.value(0).toString()  //GUID
-                                    ) );
+                                    ), &QObject::deleteLater );
         plists.append( p );
     }
 

src/libtomahawk/playlist.cpp

@@ -185,7 +185,7 @@ Playlist::create( const source_ptr& author,
         entries << p;
     }
 
-    playlist_ptr playlist( new Playlist( author, guid, title, info, creator, shared, entries ) );
+    playlist_ptr playlist( new Playlist( author, guid, title, info, creator, shared, entries ), &QObject::deleteLater );
 
     // save to DB in the background
     // Watch for the created() signal if you need to be sure it's written.

src/libtomahawk/playlist/dynamic/DynamicPlaylist.cpp

@@ -152,7 +152,7 @@ DynamicPlaylist::create( const Tomahawk::source_ptr& author,
                          bool autoLoad
                        )
 {
-    dynplaylist_ptr dynplaylist = Tomahawk::dynplaylist_ptr( new DynamicPlaylist( author, guid, title, info, creator, type, mode, shared, autoLoad ) );
+    dynplaylist_ptr dynplaylist = Tomahawk::dynplaylist_ptr( new DynamicPlaylist( author, guid, title, info, creator, type, mode, shared, autoLoad ), &QObject::deleteLater );
 
     DatabaseCommand_CreateDynamicPlaylist* cmd = new DatabaseCommand_CreateDynamicPlaylist( author, dynplaylist, autoLoad );
     connect( cmd, SIGNAL(finished()), dynplaylist.data(), SIGNAL(created()) );

src/libtomahawk/query.cpp

@@ -44,7 +44,7 @@ Query::get( const QString& artist, const QString& track, const QString& album, c
     if ( qid.isEmpty() )
         autoResolve = false;
 
-    query_ptr q = query_ptr( new Query( artist, track, album, qid, autoResolve ) );
+    query_ptr q = query_ptr( new Query( artist, track, album, qid, autoResolve ), &QObject::deleteLater );
     q->setWeakRef( q.toWeakRef() );
 
     if ( autoResolve )
@@ -58,7 +58,7 @@ query_ptr
 Query::get( const QString& query, const QID& qid )
 {
 
-    query_ptr q = query_ptr( new Query( query, qid ) );
+    query_ptr q = query_ptr( new Query( query, qid ), &QObject::deleteLater );
     q->setWeakRef( q.toWeakRef() );
 
     if ( !qid.isEmpty() )

src/libtomahawk/result.cpp

@@ -43,7 +43,7 @@ Result::get( const QString& url )
         return s_results.value( url );
     }
 
-    result_ptr r = result_ptr( new Result( url ) );
+    result_ptr r = result_ptr( new Result( url ), &QObject::deleteLater );
     s_results.insert( url, r );
 
     return r;