From 9fc0610720da2e4ee23d24f929345e0d2956ba2c Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Mon, 21 Jan 2019 15:52:33 -0800
Subject: [PATCH] Fix to ensure hash devCtx is cleared.

---
 wolfcrypt/src/sha256.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/wolfcrypt/src/sha256.c b/wolfcrypt/src/sha256.c
index d8c278c2e..d863c62ee 100644
--- a/wolfcrypt/src/sha256.c
+++ b/wolfcrypt/src/sha256.c
@@ -543,6 +543,7 @@ static int InitSha256(wc_Sha256* sha256)
         sha256->heap = heap;
     #ifdef WOLF_CRYPTO_CB
         sha256->devId = devId;
+        sha256->devCtx = NULL;
     #endif
 
         ret = InitSha256(sha256);