Fix a crash on print preview

There's no printer when doing print preview so it's not possible to get
its hard margins.

diff --git a/gtk/gtkprintoperation-unix.c b/gtk/gtkprintoperation-unix.c
index 4ac60de87919117b097660aae5b79bfd1c1ff038..f12ab01b373c805d47b62d75ed579ae1a506fd39 100644 (file)
--- a/gtk/gtkprintoperation-unix.c
+++ b/gtk/gtkprintoperation-unix.c
@@ -547,7 +547,7 @@ finish_print (PrintResponseData *rdata,
 
       if (gtk_print_settings_get_number_up (settings) < 2)
         {
-         if (gtk_printer_get_hard_margins (printer, &top, &bottom, &left, &right))
+         if (printer && gtk_printer_get_hard_margins (printer, &top, &bottom, &left, &right))
            _gtk_print_context_set_hard_margins (priv->print_context, top, bottom, left, right);
        }
       else