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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Jesper Nilsson <jesper.nilsson@axis.com>,
        Lars Persson <lars.persson@axis.com>,
        Eric Biggers <ebiggers@google.com>,
        Herbert Xu <herbert@gondor.apana.org.au>
Subject: [PATCH 5.4 78/96] crypto: artpec6 - return correct error code for failed setkey()
Date:   Thu, 13 Feb 2020 07:21:25 -0800
Message-Id: <20200213151908.623473446@linuxfoundation.org>
In-Reply-To: <20200213151839.156309910@linuxfoundation.org>
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From: Eric Biggers <ebiggers@google.com>

commit b828f905904cd76424230c69741a4cabb0174168 upstream.

->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@axis.com>
Cc: Lars Persson <lars.persson@axis.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Lars Persson <lars.persson@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/crypto/axis/artpec6_crypto.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/crypto/axis/artpec6_crypto.c
+++ b/drivers/crypto/axis/artpec6_crypto.c
@@ -1251,7 +1251,7 @@ static int artpec6_crypto_aead_set_key(s
 
 	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;