-check return values

1 files changed, 11 insertions, 1 deletions

diff --git a/src/fs/gnunet-fs-gtk-event_handler.c b/src/fs/gnunet-fs-gtk-event_handler.c
index bae6a632..33b9f147 100644
--- a/src/fs/gnunet-fs-gtk-event_handler.c
+++ b/src/fs/gnunet-fs-gtk-event_handler.c
@@ -495,7 +495,17 @@ download_lost_parent (struct DownloadEntry *de, uint64_t size,
   tm_old = gtk_tree_row_reference_get_model (rr_old);
   path = gtk_tree_row_reference_get_path (rr_old);
   gtk_tree_row_reference_free (rr_old);
-  gtk_tree_model_get_iter (tm_old, &iter_old, path);
+  if (NULL == path)
+  {
+    GNUNET_break (0);
+    return NULL; 
+  }
+  if (TRUE != gtk_tree_model_get_iter (tm_old, &iter_old, path))
+  {
+    GNUNET_break (0);
+    gtk_tree_path_free (path);
+    return NULL; 
+  }
   gtk_tree_path_free (path);
   move_children (tm_old, &iter_old, model, &iter);
   while (TRUE == gtk_tree_model_iter_children (model, &child, &iter))