label: Be more defensive against non-existant focus_link

diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 22382ed5e5fa819fea33d8ed4349fcda5dc64c39..a26e6265aa5cac94136a29559b92364fcdab4b1e 100644 (file)
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -3849,8 +3849,14 @@ gtk_label_focus (GtkWidget        *widget,
       int new_index = -1;
       int i;
 
+      if (info->n_links == 0)
+        goto out;
+
       focus_link = gtk_label_get_focus_link (self, &focus_link_index);
 
+      if (!focus_link)
+        goto out;
+
       switch (direction)
         {
         case GTK_DIR_TAB_FORWARD: