# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1410197763 -14400
# Node ID 51fe42cc7876c35799892690d9a03c536b40000c
# Parent  e7f6991eca4740f049f340882ef2e2fb7e7aeba9
Fixed ETag memory allocation error handling.

The etag->hash must be set to 0 to avoid an empty ETag header being
returned with the 500 Internal Server Error page after the memory
allocation failure.

Reported by Markus Linnala.

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -1837,6 +1837,7 @@ ngx_http_set_etag(ngx_http_request_t *r)
 
     etag->value.data = ngx_pnalloc(r->pool, NGX_OFF_T_LEN + NGX_TIME_T_LEN + 3);
     if (etag->value.data == NULL) {
+        etag->hash = 0;
         return NGX_ERROR;
     }