diff --git a/include/proto/stream_interface.h b/include/proto/stream_interface.h
index 6ee6ebf..4e7f734 100644
--- a/include/proto/stream_interface.h
+++ b/include/proto/stream_interface.h
@@ -1,23 +1,23 @@
 /*
-  include/proto/stream_interface.h
-  This file contains stream_interface function prototypes
-
-  Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation, version 2.1
-  exclusively.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-*/
+ * include/proto/stream_interface.h
+ * This file contains stream_interface function prototypes
+ *
+ * Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
 
 #ifndef _PROTO_STREAM_INTERFACE_H
 #define _PROTO_STREAM_INTERFACE_H
@@ -31,7 +31,6 @@
 /* main event functions used to move data between sockets and buffers */
 int stream_int_check_timeouts(struct stream_interface *si);
 void stream_int_report_error(struct stream_interface *si);
-void stream_int_return(struct stream_interface *si, const struct chunk *msg);
 void stream_int_retnclose(struct stream_interface *si, const struct chunk *msg);
 
 /* functions used when running a stream interface as a task */
diff --git a/src/proto_http.c b/src/proto_http.c
index f98ff5a..b83beb9 100644
--- a/src/proto_http.c
+++ b/src/proto_http.c
@@ -3247,11 +3247,9 @@
 						t->srv->counters.failed_resp++;
 					cur_proxy->counters.failed_resp++;
 				return_srv_prx_502:
-					buffer_shutr_now(rep);
-					buffer_shutw_now(req);
 					rep->analysers = 0;
 					txn->status = 502;
-					stream_int_return(rep->cons, error_message(t, HTTP_ERR_502));
+					stream_int_retnclose(rep->cons, error_message(t, HTTP_ERR_502));
 					if (!(t->flags & SN_ERR_MASK))
 						t->flags |= SN_ERR_PRXCOND;
 					if (!(t->flags & SN_FINST_MASK))
diff --git a/src/stream_interface.c b/src/stream_interface.c
index f4b723b..fcfa117 100644
--- a/src/stream_interface.c
+++ b/src/stream_interface.c
@@ -60,19 +60,6 @@
 }
 
 /*
- * Erase any content from input and output buffers, and return a message into
- * the output buffer. The message is provided as a "chunk". If it is null,
- * then an empty message is used.
- */
-void stream_int_return(struct stream_interface *si, const struct chunk *msg)
-{
-	buffer_erase(si->ib);
-	buffer_cut_tail(si->ob);
-	if (msg && msg->len)
-		buffer_write(si->ob, msg->str, msg->len);
-}
-
-/*
  * Returns a message to the client ; the connection is shut down for read,
  * and the request is cleared so that no server connection can be initiated.
  * The buffer is marked for read shutdown on the other side to protect the