linux-kernel - [PATCH v2 1/1] crypto: stm32/hash

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Date:   Mon, 6 Nov 2017 23:41:52 +0100
From:   <lionel.debieve@...com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        <linux-crypto@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     Benjamin Gaignard <benjamin.gaignard@...com>,
        Fabien Dessenne <fabien.dessenne@...com>,
        Ludovic Barre <ludovic.barre@...com>,
        Lionel Debieve <lionel.debieve@...com>
Subject: [PATCH v2 1/1] crypto: stm32/hash - Fix return issue on update

From: Lionel Debieve <lionel.debieve@...com>

When data append reached the threshold for processing,
we must inform that processing is on going to wait before
managing the next request.

Signed-off-by: Lionel Debieve <lionel.debieve@...com>
---
 drivers/crypto/stm32/stm32-hash.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index c462be7..4ca4a26 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -895,7 +895,6 @@ static int stm32_hash_enqueue(struct ahash_request *req, unsigned int op)
 static int stm32_hash_update(struct ahash_request *req)
 {
 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(req);
-	int ret;
 
 	if (!req->nbytes || !(rctx->flags & HASH_FLAGS_CPU))
 		return 0;
@@ -909,12 +908,7 @@ static int stm32_hash_update(struct ahash_request *req)
 		return 0;
 	}
 
-	ret = stm32_hash_enqueue(req, HASH_OP_UPDATE);
-
-	if (rctx->flags & HASH_FLAGS_FINUP)
-		return ret;
-
-	return 0;
+	return stm32_hash_enqueue(req, HASH_OP_UPDATE);
 }
 
 static int stm32_hash_final(struct ahash_request *req)
-- 
2.7.4