diff -r 3d68bb0047a1 -r ec403cf308eb master/soe_request.c
--- a/master/soe_request.c	Tue Feb 12 15:30:34 2013 +0100
+++ b/master/soe_request.c	Tue Feb 12 15:46:43 2013 +0100
@@ -84,6 +84,8 @@
 /*****************************************************************************/
 
 /** Copy another SoE request.
+ *
+ * \return Zero on success, otherwise a negative error code.
  */
 int ec_soe_request_copy(
         ec_soe_request_t *req, /**< SoE request. */