From cf6c582b9a617ccec1de1e09015143757c79c00d Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Wed, 17 Dec 2008 16:07:58 +0000
Subject: [PATCH] fix segfault

---
 src/http/ngx_http_upstream.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index fac45fe35..9a96a1e3c 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2488,7 +2488,9 @@ ngx_http_upstream_finalize_request(ngx_http_request_t *r,
     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                    "finalize http upstream request: %i", rc);
 
-    *u->cleanup = NULL;
+    if (u->cleanup) {
+        *u->cleanup = NULL;
+    }
 
     if (u->state && u->state->response_sec) {
         tp = ngx_timeofday();