From ee4014a12f1e376077108b2617c35d12280fc95b Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Tue, 4 Oct 2016 02:22:20 -0700
Subject: [PATCH] hd: minor fixes.

---
 lib/hd/private.js    | 5 ++---
 lib/hd/public.js     | 5 ++---
 lib/wallet/wallet.js | 1 -
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/lib/hd/private.js b/lib/hd/private.js
index c1898b47..d3a6a605 100644
--- a/lib/hd/private.js
+++ b/lib/hd/private.js
@@ -7,7 +7,6 @@
 'use strict';
 
 var utils = require('../utils/utils');
-var LRU = require('../utils/lru');
 var crypto = require('../crypto/crypto');
 var ec = require('../crypto/ec');
 var assert = require('assert');
@@ -191,7 +190,7 @@ HDPrivateKey.prototype.destroy = function destroy(pub) {
 HDPrivateKey.prototype.derive = function derive(index, hardened, cache) {
   var p, id, data, hash, left, right, key, child;
 
-  if (hardened instanceof LRU) {
+  if (typeof hardened !== 'boolean') {
     cache = hardened;
     hardened = false;
   }
@@ -240,7 +239,7 @@ HDPrivateKey.prototype.derive = function derive(index, hardened, cache) {
   try {
     key = ec.privateKeyTweakAdd(this.privateKey, left);
   } catch (e) {
-    return this.derive(index + 1);
+    return this.derive(index + 1, cache);
   }
 
   if (!this.fingerPrint)
diff --git a/lib/hd/public.js b/lib/hd/public.js
index f722f9e2..16d175f8 100644
--- a/lib/hd/public.js
+++ b/lib/hd/public.js
@@ -7,7 +7,6 @@
 'use strict';
 
 var utils = require('../utils/utils');
-var LRU = require('../utils/lru');
 var crypto = require('../crypto/crypto');
 var ec = require('../crypto/ec');
 var assert = require('assert');
@@ -144,7 +143,7 @@ HDPublicKey.prototype.destroy = function destroy() {
 HDPublicKey.prototype.derive = function derive(index, hardened, cache) {
   var p, id, data, hash, left, right, key, child;
 
-  if (hardened instanceof LRU) {
+  if (typeof hardened !== 'boolean') {
     cache = hardened;
     hardened = false;
   }
@@ -183,7 +182,7 @@ HDPublicKey.prototype.derive = function derive(index, hardened, cache) {
   try {
     key = ec.publicKeyTweakAdd(this.publicKey, left, true);
   } catch (e) {
-    return this.derive(index + 1);
+    return this.derive(index + 1, cache);
   }
 
   if (!this.fingerPrint)
diff --git a/lib/wallet/wallet.js b/lib/wallet/wallet.js
index f6837690..951b3811 100644
--- a/lib/wallet/wallet.js
+++ b/lib/wallet/wallet.js
@@ -413,7 +413,6 @@ Wallet.prototype._encrypt = co(function* encrypt(passphrase) {
   yield this.commit();
 });
 
-
 /**
  * Decrypt the wallet permanently.
  * @param {String|Buffer} passphrase