Cleaned up thread-related code.

src/core/download_list.cc

@@ -90,11 +90,11 @@ DownloadList::create(torrent::Object* obj, uint32_t tracker_key, bool printLog)
     download = torrent::download_add(obj, tracker_key);
 
   } catch (torrent::local_error& e) {
-    delete obj;
-
     if (printLog)
       lt_log_print(torrent::LOG_TORRENT_ERROR, "Could not create download: %s", e.what());
 
+    delete obj;
+
     return NULL;
   }