From 2dc99208b06c319d2fca8be0fa5148f2bb665cd9 Mon Sep 17 00:00:00 2001
From: Travis Meisenheimer <travis@indexoutofbounds.com>
Date: Wed, 18 Jan 2017 21:36:52 -0600
Subject: [PATCH] crypto: return the retval of HMAC_Update

Fixes coverity scan issue 55489.
---
 src/node_crypto.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/node_crypto.cc b/src/node_crypto.cc
index f8436672373a4e..d7df5d3321378e 100644
--- a/src/node_crypto.cc
+++ b/src/node_crypto.cc
@@ -3684,8 +3684,8 @@ void Hmac::HmacInit(const FunctionCallbackInfo<Value>& args) {
 bool Hmac::HmacUpdate(const char* data, int len) {
   if (!initialised_)
     return false;
-  HMAC_Update(&ctx_, reinterpret_cast<const unsigned char*>(data), len);
-  return true;
+  int r = HMAC_Update(&ctx_, reinterpret_cast<const unsigned char*>(data), len);
+  return r == 1;
 }