From 701fbd2858d1a3760c9d838541c0c9970d5c3d42 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Sun, 17 Jan 2016 17:18:37 +0100
Subject: [PATCH] src: don't check failure with ERR_peek_error()

It's possible there is already an existing error on OpenSSL's error
stack that is unrelated to the EVP_DigestInit_ex() operation we just
executed.

Fixes: https://github.com/nodejs/node/issues/4221
PR-URL: https://github.com/nodejs/node/pull/4731
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Fedor Indutny <fedor@indutny.com>
---
 src/node_crypto.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/node_crypto.cc b/src/node_crypto.cc
index 81380d371d2664..666d995309774a 100644
--- a/src/node_crypto.cc
+++ b/src/node_crypto.cc
@@ -3611,8 +3611,7 @@ bool Hash::HashInit(const char* hash_type) {
   if (md_ == nullptr)
     return false;
   EVP_MD_CTX_init(&mdctx_);
-  EVP_DigestInit_ex(&mdctx_, md_, nullptr);
-  if (0 != ERR_peek_error()) {
+  if (EVP_DigestInit_ex(&mdctx_, md_, nullptr) <= 0) {
     return false;
   }
   initialised_ = true;