locks.patch

diff --git a/src/crypter.cpp b/src/crypter.cpp
index d3866652b..55eeb6645 100644
--- a/src/crypter.cpp
+++ b/src/crypter.cpp
@@ -259,7 +259,7 @@ bool CCryptoKeyStore::Unlock(const CKeyingMaterial& vMasterKeyIn)
 
         uint256 hashSeed;
         if (CWalletDB(pwalletMain->strWalletFile).ReadCurrentSeedHash(hashSeed)) {
-
+            LOCK(pwalletMain->cs_wallet);
             uint256 nSeed;
             if (!GetDeterministicSeed(hashSeed, nSeed)) {
                 return error("Failed to read zPHR seed from DB. Wallet is probably corrupt.");
diff --git a/src/zphrwallet.cpp b/src/zphrwallet.cpp
index fd28e93de..402ec1b96 100644
--- a/src/zphrwallet.cpp
+++ b/src/zphrwallet.cpp
@@ -14,6 +14,7 @@ using namespace libzerocoin;
 
 CzPHRWallet::CzPHRWallet(std::string strWalletFile)
 {
+    LOCK(pwalletMain->cs_wallet);
     this->strWalletFile = strWalletFile;
     CWalletDB walletdb(strWalletFile);
 
@@ -69,7 +70,7 @@ CzPHRWallet::CzPHRWallet(std::string strWalletFile)
 
 bool CzPHRWallet::SetMasterSeed(const uint256& seedMaster, bool fResetCount)
 {
-
+    LOCK(pwalletMain->cs_wallet);
     CWalletDB walletdb(strWalletFile);
     if (pwalletMain->IsLocked())
         return false;