crypto: ux500 - Fix error return code in hash_hw_final()

[ Upstream commit b01360384009ab066940b45f34880991ea7ccbfb ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 8a63b1994c50 ("crypto: ux500 - Add driver for HASH hardware")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/crypto/ux500/hash/hash_core.c b/drivers/crypto/ux500/hash/hash_core.c
index bca6b701c06792187755f2d96e01515c265d7b11..7021b5b49c03489ec9cc09329afed6de66f465a3 100644 (file)
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -1022,6 +1022,7 @@ static int hash_hw_final(struct ahash_request *req)
                        goto out;
                }
        } else if (req->nbytes == 0 && ctx->keylen > 0) {
+               ret = -EPERM;
                dev_err(device_data->dev, "%s: Empty message with keylength > 0, NOT supported\n",
                        __func__);
                goto out;