Upstream keepalive: clearing of c->data in cached connections.

Previously, connections returned from keepalive cache had c->data
pointing to the keepalive cache item.  While this shouldn't be a problem
for correct code, as c->data is not expected to be used before it is set,
explicitly clearing it might help to avoid confusion.

diff --git a/src/http/modules/ngx_http_upstream_keepalive_module.c b/src/http/modules/ngx_http_upstream_keepalive_module.c
index bdc4ae5c7cca71f1e6eeea6e70aba225ae476242..1560807c660715c31bee6f37c0c3bc61eff3cfde 100644 (file)
--- a/src/http/modules/ngx_http_upstream_keepalive_module.c
+++ b/src/http/modules/ngx_http_upstream_keepalive_module.c
@@ -275,6 +275,7 @@ found:
 
     c->idle = 0;
     c->sent = 0;
+    c->data = NULL;
     c->log = pc->log;
     c->read->log = pc->log;
     c->write->log = pc->log;