[epiphany] ephy-combined-stop-reload-action: add type checks

[Xan Lopez <xan src gnome org>]

commit d37c1046ed955f2405065083e02b6a28fad9f925
Author: Xan Lopez <xan igalia com>
Date:   Fri Dec 30 21:56:40 2011 +0100

    ephy-combined-stop-reload-action: add type checks
    
    This is a public function after all.

 src/ephy-combined-stop-reload-action.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/ephy-combined-stop-reload-action.c b/src/ephy-combined-stop-reload-action.c
index 2ba95d4..0b43d8f 100644
--- a/src/ephy-combined-stop-reload-action.c
+++ b/src/ephy-combined-stop-reload-action.c
@@ -64,7 +64,11 @@ ephy_combined_stop_reload_action_set_loading (EphyCombinedStopReloadAction *acti
                                               gboolean loading)
 {
   EphyCombinedStopReloadActionEnum action_enum;
-  EphyCombinedStopReloadActionPrivate *priv = action->priv;
+  EphyCombinedStopReloadActionPrivate *priv;
+
+  g_return_if_fail (EPHY_IS_COMBINED_STOP_RELOAD_ACTION (action));
+
+  priv = action->priv;
 
   if (priv->loading == loading && priv->action_handler_id)
     return;