From 246228e410268470010dd02b842040f95bed2f16 Mon Sep 17 00:00:00 2001
From: Anthony Hu <anthony@wolfssl.com>
Date: Wed, 11 Sep 2024 14:39:03 -0400
Subject: [PATCH] Check for PIN before saving it.

---
 wolfcrypt/src/wc_pkcs11.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wolfcrypt/src/wc_pkcs11.c b/wolfcrypt/src/wc_pkcs11.c
index 8ccb47187..4a3b28adb 100644
--- a/wolfcrypt/src/wc_pkcs11.c
+++ b/wolfcrypt/src/wc_pkcs11.c
@@ -657,7 +657,7 @@ int wc_Pkcs11Token_Init(Pkcs11Token* token, Pkcs11Dev* dev, int slotId,
         tokenNameSz = XSTRLEN(tokenName);
     }
     ret = Pkcs11Token_Init(token, dev, slotId, tokenName, tokenNameSz);
-    if (ret == 0) {
+    if (ret == 0 && userPin != NULL) {
         token->userPin = (CK_UTF8CHAR_PTR)userPin;
         token->userPinSz = (CK_ULONG)userPinSz;
         token->userPinLogin = 1;
@@ -708,7 +708,7 @@ int wc_Pkcs11Token_InitName(Pkcs11Token* token, Pkcs11Dev* dev,
     const unsigned char* userPin, int userPinSz)
 {
     int ret = Pkcs11Token_Init(token, dev, -1, tokenName, (size_t)tokenNameSz);
-    if (ret == 0) {
+    if (ret == 0 && userPin != NULL) {
         token->userPin = (CK_UTF8CHAR_PTR)userPin;
         token->userPinSz = (CK_ULONG)userPinSz;
         token->userPinLogin = 1;