--- asterisk-11.12.1/main/message.c     2014-09-25 12:31:10.575073358 +0200
+++ asterisk-11.12.1a/main/message.c    2014-09-25 12:37:21.343087119 +0200
@@ -1189,7 +1189,7 @@
 
        if (ast_strlen_zero(to)) {
                astman_send_error(s, m, "No 'To' address specified.");
-               return -1;
+               return 0;
        }
 
        if (!ast_strlen_zero(base64body)) {
@@ -1204,13 +1204,13 @@
 
        if (!tech_holder) {
                astman_send_error(s, m, "Message technology not found.");
-               return -1;
+               return 0;
        }
 
        if (!(msg = ast_msg_alloc())) {
                ao2_ref(tech_holder, -1);
                astman_send_error(s, m, "Internal failure\n");
-               return -1;
+               return 0;
        }
 
        data = astman_get_variables(m);
@@ -1235,7 +1235,7 @@
        } else {
                astman_send_ack(s, m, "Message successfully sent");
        }
-       return res;
+       return 0;
 }
 
 int ast_msg_send(struct ast_msg *msg, const char *to, const char *from)