diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 3737839..4e3eb39 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -1922,6 +1922,10 @@
             last += n;
             bytes += n;
 
+            if (!c->read->ready) {
+                return bytes;
+            }
+
             if (last == b->end) {
                 cl = cl->next;