playlist.c: removed potential deadlock and duplicate signalling

src/playlist/engine.c

@@ -334,14 +334,14 @@ check_input:
              if( p_item == NULL )
              {
                 msg_Dbg( p_playlist, "nothing to play" );
+                p_playlist->status.i_status = PLAYLIST_STOPPED;
+                PL_UNLOCK
+
                 if( b_playexit == VLC_TRUE )
                 {
                     msg_Info( p_playlist, "end of playlist, exiting" );
                     vlc_object_kill( p_playlist->p_libvlc );
                 }
-                p_playlist->status.i_status = PLAYLIST_STOPPED;
-                PL_UNLOCK
-
                 ObjectGarbageCollector( p_playlist, VLC_TRUE );
                 return;
              }

src/playlist/thread.c

@@ -138,7 +138,6 @@ int playlist_ThreadDestroy( playlist_t * p_playlist )
 {
     // Tell playlist to go to last loop
     vlc_object_kill( p_playlist );
-    playlist_Signal( p_playlist );
 
     // Kill preparser
     if( p_playlist->p_preparse )