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changeset 4421:fbae1a82de8b

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Fixed error handling in ngx_event_connect_peer(). Previously if ngx_add_event() failed a connection was freed two times (once in the ngx_event_connect_peer(), and again by a caller) as pc->connection was left set. Fix is to always use ngx_close_connection() to close connection properly and set pc->connection to NULL on errors. Patch by Piotr Sikora.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 30 Jan 2012 11:12:52 +0000
parents 9ce48f9eb85b
children b1a9d725ab69
files src/event/ngx_event_connect.c
diffstat 1 files changed, 5 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/src/event/ngx_event_connect.c
+++ b/src/event/ngx_event_connect.c
@@ -160,6 +160,9 @@ ngx_event_connect_peer(ngx_peer_connecti
             ngx_log_error(level, c->log, err, "connect() to %V failed",
                           pc->name);
 
+            ngx_close_connection(c);
+            pc->connection = NULL;
+
             return NGX_DECLINED;
         }
     }
@@ -241,12 +244,8 @@ ngx_event_connect_peer(ngx_peer_connecti
 
 failed:
 
-    ngx_free_connection(c);
-
-    if (ngx_close_socket(s) == -1) {
-        ngx_log_error(NGX_LOG_ALERT, pc->log, ngx_socket_errno,
-                      ngx_close_socket_n " failed");
-    }
+    ngx_close_connection(c);
+    pc->connection = NULL;
 
     return NGX_ERROR;
 }