Prevent crash under certain pathological results.

[pspp-builds.git] / src / ui / gui / variable-info-dialog.c

diff --git a/src/ui/gui/variable-info-dialog.c b/src/ui/gui/variable-info-dialog.c
index d00fcd5d55d15c37b3a292141e7ae8ec3f4eb706..ba9c043dcd53fb0eaf5cc5a8239f5636327cb838 100644 (file)
--- a/src/ui/gui/variable-info-dialog.c
+++ b/src/ui/gui/variable-info-dialog.c
@@ -76,6 +76,8 @@ populate_text (GtkTreeView *treeview, gpointer data)
 
   GtkTextBuffer *textbuffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW(data));
   const struct variable *var = get_selected_variable (treeview);
+  if ( var == NULL)
+    return;
 
   gstring = g_string_sized_new (200);
   text = name_to_string (var, NULL);