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Date:   Fri, 14 Feb 2020 11:15:54 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Eric Biggers <ebiggers@...gle.com>,
        Jesper Nilsson <jesper.nilsson@...s.com>,
        Lars Persson <lars.persson@...s.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Sasha Levin <sashal@...nel.org>, linux-arm-kernel@...s.com,
        linux-crypto@...r.kernel.org
Subject: [PATCH AUTOSEL 4.14 105/186] crypto: artpec6 - return correct error code for failed setkey()

From: Eric Biggers <ebiggers@...gle.com>

[ Upstream commit b828f905904cd76424230c69741a4cabb0174168 ]

->setkey() is supposed to retun -EINVAL for invalid key lengths, not -1.

Fixes: a21eb94fc4d3 ("crypto: axis - add ARTPEC-6/7 crypto accelerator driver")
Cc: Jesper Nilsson <jesper.nilsson@...s.com>
Cc: Lars Persson <lars.persson@...s.com>
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
Acked-by: Lars Persson <lars.persson@...s.com>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/crypto/axis/artpec6_crypto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/axis/artpec6_crypto.c b/drivers/crypto/axis/artpec6_crypto.c
index 9f82e14983f65..a886245b931e6 100644
--- a/drivers/crypto/axis/artpec6_crypto.c
+++ b/drivers/crypto/axis/artpec6_crypto.c
@@ -1256,7 +1256,7 @@ static int artpec6_crypto_aead_set_key(struct crypto_aead *tfm, const u8 *key,
 
 	if (len != 16 && len != 24 && len != 32) {
 		crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
-		return -1;
+		return -EINVAL;
 	}
 
 	ctx->key_length = len;
-- 
2.20.1

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