[nautilus] batch-rename-dialog: use clear_object to avoid use after free

[Carlos Soriano <csoriano src gnome org>]

commit e0284d001624ad33f566121fd7223ef9cf80de61
Author: Carlos Soriano <csoriano gnome org>
Date:   Fri Sep 16 10:02:46 2016 +0200

    batch-rename-dialog: use clear_object to avoid use after free

 src/nautilus-batch-rename-dialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/nautilus-batch-rename-dialog.c b/src/nautilus-batch-rename-dialog.c
index 09a85af..5a60cdd 100644
--- a/src/nautilus-batch-rename-dialog.c
+++ b/src/nautilus-batch-rename-dialog.c
@@ -1998,7 +1998,7 @@ nautilus_batch_rename_dialog_finalize (GObject *object)
     if (dialog->checking_conflicts)
     {
         g_cancellable_cancel (dialog->conflict_cancellable);
-        g_object_unref (dialog->conflict_cancellable);
+        g_clear_object (&dialog->conflict_cancellable);
     }
 
     g_list_free (dialog->original_name_listbox_rows);