src: rename field to unregister_hook

src/datawizard/coherency.c

@@ -881,5 +881,5 @@ unsigned _starpu_is_data_present_or_requested(starpu_data_handle_t handle, unsig
 
 void _starpu_data_set_unregister_hook(starpu_data_handle_t handle, _starpu_data_handle_unregister_hook func)
 {
-	handle->hook = func;
+	handle->unregister_hook = func;
 }

src/datawizard/coherency.h

@@ -220,7 +220,7 @@ struct _starpu_data_state
 	unsigned int mf_node; //XXX
 
 	/* hook to be called when unregistering the data */
-	_starpu_data_handle_unregister_hook hook;
+	_starpu_data_handle_unregister_hook unregister_hook;
 };
 
 void _starpu_display_msi_stats(void);

src/datawizard/interfaces/data_interface.c

@@ -716,7 +716,7 @@ static void _starpu_data_unregister(starpu_data_handle_t handle, unsigned cohere
 
 	size_t size = _starpu_data_get_size(handle);
 
-	if (handle->hook) handle->hook(handle);
+	if (handle->unregister_hook) handle->unregister_hook(handle);
 
 	_starpu_data_free_interfaces(handle);