Index: uspace/app/trace/trace.c
===================================================================
--- uspace/app/trace/trace.c	(revision d5c1051faf4391647834d99babdd4a44ee5d9700)
+++ uspace/app/trace/trace.c	(revision 84a1a546f62a2ba0f913f8f1bfce8d4bc68d7aa4)
@@ -260,5 +260,5 @@
 
 
-static void print_sc_retval(int retval, val_type_t val_type)
+static void print_sc_retval(sysarg_t retval, val_type_t val_type)
 {
 	printf(" -> ");
@@ -296,13 +296,13 @@
 	IPC_SET_ARG5(call, 0);
 
-	ipcp_call_out(phoneid, &call, sc_rc);
-}
-
-static void sc_ipc_call_async_slow(sysarg_t *sc_args, sysarg_t sc_rc)
+	ipcp_call_out(phoneid, &call, 0);
+}
+
+static void sc_ipc_call_async_slow(sysarg_t *sc_args, int sc_rc)
 {
 	ipc_call_t call;
 	int rc;
 
-	if (sc_rc != (sysarg_t) EOK)
+	if (sc_rc != EOK)
 		return;
 
@@ -310,6 +310,6 @@
 	rc = udebug_mem_read(sess, &call.args, sc_args[1], sizeof(call.args));
 
-	if (rc >= 0) {
-		ipcp_call_out(sc_args[0], &call, sc_rc);
+	if (rc == EOK) {
+		ipcp_call_out(sc_args[0], &call, 0);
 	}
 }
@@ -581,5 +581,5 @@
 		
 		if (!console_get_event(console, &event))
-			return -1;
+			return EINVAL;
 		
 		if (event.type == CEV_KEY) {