# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1238422987 0
# Node ID b0cfe5f66e8d224c4add4366beeba23e9f9b295f
# Parent  754ab3d3fe186154c3ef536eb1c428beb6f8688c
fix segfault introduced in r2602 if there is 502/504 error
and proxy/fastcgi_cache is defined without proxy/fastcgi_cache_valid

diff --git a/src/http/ngx_http_file_cache.c b/src/http/ngx_http_file_cache.c
--- a/src/http/ngx_http_file_cache.c
+++ b/src/http/ngx_http_file_cache.c
@@ -1290,6 +1290,10 @@ ngx_http_file_cache_valid(ngx_array_t *c
     ngx_uint_t               i;
     ngx_http_cache_valid_t  *valid;
 
+    if (cache_valid == NULL) {
+        return 0;
+    }
+
     valid = cache_valid->elts;
     for (i = 0; i < cache_valid->nelts; i++) {