From: Zhen Lei <thunder.leizhen@huawei.com>
Date: Sat, 8 May 2021 07:00:49 +0000 (+0800)
Subject: crypto: ux500 - Fix error return code in hash_hw_final()
X-Git-Tag: v4.19.198~325
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d574e45410b8769853e040ec1e3e6040ea39e71;p=thirdparty%2Fkernel%2Fstable.git

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 a0bb8a6eec3fd..18ef5b8cc18a7 100644
--- a/drivers/crypto/ux500/hash/hash_core.c
+++ b/drivers/crypto/ux500/hash/hash_core.c
@@ -1007,6 +1007,7 @@ 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;