# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1346857607 0
# Node ID 3464d0b63300100e1514a9b13cf8b973314c20d3
# Parent  949ea3d3cd1a5146df56a2a5892a898364d95ef6
Write filter: replaced unneeded loop with one to free chains.

Noted by Gabor Lekeny.

diff --git a/src/http/ngx_http_write_filter_module.c b/src/http/ngx_http_write_filter_module.c
--- a/src/http/ngx_http_write_filter_module.c
+++ b/src/http/ngx_http_write_filter_module.c
@@ -185,18 +185,14 @@ ngx_http_write_filter(ngx_http_request_t
     }
 
     if (size == 0 && !(c->buffered & NGX_LOWLEVEL_BUFFERED)) {
-        if (last) {
-            r->out = NULL;
-            c->buffered &= ~NGX_HTTP_WRITE_BUFFERED;
+        if (last || flush) {
+            for (cl = r->out; cl; /* void */) {
+                ln = cl;
+                cl = cl->next;
+                ngx_free_chain(r->pool, ln);
+            }
 
-            return NGX_OK;
-        }
-
-        if (flush) {
-            do {
-                r->out = r->out->next;
-            } while (r->out);
-
+            r->out = NULL;
             c->buffered &= ~NGX_HTTP_WRITE_BUFFERED;
 
             return NGX_OK;