From 6a29630c30186d7a0c71203fe7b15a39ea080c1d Mon Sep 17 00:00:00 2001
From: BufoViridis <30531954+BufoViridis@users.noreply.github.com>
Date: Tue, 30 Jan 2018 19:43:50 +0200
Subject: [PATCH] src: fix crypto.pbkdf2 callback error argument
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Callbacks should always return `null` instead of `undefined` if no
error occurred.

PR-URL: https://github.com/nodejs/node/pull/18458
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 src/node_crypto.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/node_crypto.cc b/src/node_crypto.cc
index 1f185dd715802c..ee0fbab5d80521 100644
--- a/src/node_crypto.cc
+++ b/src/node_crypto.cc
@@ -4943,7 +4943,7 @@ void PBKDF2Request::Work(uv_work_t* work_req) {
 
 void PBKDF2Request::After(Local<Value> (*argv)[2]) {
   if (success_) {
-    (*argv)[0] = Undefined(env()->isolate());
+    (*argv)[0] = Null(env()->isolate());
     (*argv)[1] = Buffer::New(env(), key_, keylen_).ToLocalChecked();
     key_ = nullptr;
     keylen_ = 0;