From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Sat, 11 Jun 2022 07:15:28 +0000 (-0700)
Subject: Fixed njs_array_expand() for empty arrays.
X-Git-Tag: 0.7.5~8
X-Git-Url: http://www.kaiwu.me/postgresql/commit/static/gitweb.js?a=commitdiff_plain;h=85444983a673fe4e3dc19a5000ef43e02feaac75;p=njs.git

Fixed njs_array_expand() for empty arrays.
---

diff --git a/src/njs_array.c b/src/njs_array.c
index 2367420d..6691d800 100644
--- a/src/njs_array.c
+++ b/src/njs_array.c
@@ -408,7 +408,9 @@ njs_array_expand(njs_vm_t *vm, njs_array_t *array, uint32_t prepend,
 
     array->start = start;
 
-    njs_mp_free(vm->mem_pool, old);
+    if (old != NULL) {
+        njs_mp_free(vm->mem_pool, old);
+    }
 
     return NJS_OK;