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-rw-r--r--arch/arm64/crypto/sha2-ce-glue.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c
index a725997e55f2..604a01a4ede6 100644
--- a/arch/arm64/crypto/sha2-ce-glue.c
+++ b/arch/arm64/crypto/sha2-ce-glue.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* sha2-ce-glue.c - SHA-224/SHA-256 using ARMv8 Crypto Extensions
*
* Copyright (C) 2014 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <asm/neon.h>
@@ -60,7 +57,7 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
- bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE);
+ bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE) && len;
if (!crypto_simd_usable()) {
if (len)