From fc9404e1d9c7667b5bc910b0fb3db92c384b5b8e Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Mon, 7 Sep 2009 12:10:07 +0000
Subject: [PATCH] do not pass incoming buf chain twice if data are ready, the
 bug was introduced in r3072

---
 src/http/ngx_http_copy_filter_module.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/http/ngx_http_copy_filter_module.c b/src/http/ngx_http_copy_filter_module.c
index 713f44023..6be05a6a7 100644
--- a/src/http/ngx_http_copy_filter_module.c
+++ b/src/http/ngx_http_copy_filter_module.c
@@ -174,6 +174,7 @@ ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in)
             n = ngx_file_aio_read(file, &e->aio_preload, 1, offset, r->pool);
 
             if (n > 0) {
+                in = NULL;
                 continue;
             }