1 files changed, 3 insertions, 2 deletions
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index afdf4631c..7053fa389 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -361,8 +361,9 @@ ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
             return NGX_CHAIN_ERROR;
         }
 
-        if (n < 0) {
-            n = 0;
+        if (n == NGX_AGAIN) {
+            c->buffered = 1;
+            return in;
         }
 
         buf->pos += n;