321,323c321,335
< 	if (*auth_context != NULL)
< 		talloc_destroy((*auth_context)->mem_ctx);
< 	*auth_context = NULL;
---
> 	auth_methods *auth_method;
> 
> 	if (*auth_context != NULL) {
> 		/* Free private data of context's authentication methods */
> 		for (auth_method = (*auth_context)->auth_method_list; auth_method; auth_method = auth_method->next) {
> 			if (auth_method->free_private_data) {
> 				auth_method->free_private_data (&auth_method->private_data);
> 				auth_method->private_data = NULL;
> 			}
> 		}
> 
> 		if (*auth_context != NULL)
> 			talloc_destroy((*auth_context)->mem_ctx);
> 		*auth_context = NULL;
> 	}