git-svn-id: http://www.frescor.org/private/svn/frescor/frsh/trunk/include@1637 35b4ef...

diff --git a/frsh_feedback_control.h b/frsh_feedback_control.h
index c5a737af6fbb184ab17452eb6281d06dad3d2269..c5fe9237484519c4dc6d76d01c56da64089cb2eb 100644 (file)
--- a/frsh_feedback_control.h
+++ b/frsh_feedback_control.h
@@ -128,7 +128,11 @@ FRSH_CPP_BEGIN_DECLS
  *
  * @note
  * No threads must be ever attached to the contract identified by
- * spare_id.
+ * spare_id. If this happens, behaviour is unspecified.
+ *
+ * @note
+ * This function must be called only once. If it is called more than
+ * once, then the behaviour is unspecified.
  **/
 int frsh_feedback_set_spare(const frsh_contract_t *spare_contract);