From c138a663e195fb9b42f0cb818dac255696430dea Mon Sep 17 00:00:00 2001
From: Josh Rickmar <jrick@conformal.com>
Date: Wed, 13 Nov 2013 17:25:50 -0500
Subject: [PATCH] Return errors if rand.Read fails.

---
 wallet/wallet.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/wallet/wallet.go b/wallet/wallet.go
index 9a59c80..18a5c91 100644
--- a/wallet/wallet.go
+++ b/wallet/wallet.go
@@ -383,8 +383,12 @@ func NewWallet(name, desc string, passphrase []byte, net btcwire.BitcoinNet, cre
 
 	// Randomly-generate rootkey and chaincode.
 	rootkey, chaincode := make([]byte, 32), make([]byte, 32)
-	rand.Read(rootkey)
-	rand.Read(chaincode)
+	if _, err := rand.Read(rootkey); err != nil {
+		return nil, err
+	}
+	if _, err := rand.Read(chaincode); err != nil {
+		return nil, err
+	}
 
 	// Create new root address from key and chaincode.
 	root, err := newRootBtcAddress(rootkey, nil, chaincode, createdAt)