LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Colin King <colin.king@canonical.com>
To: Herbert Xu <herbert@gondor.apana.org.au>,
	"David S . Miller" <davem@davemloft.net>,
	linux-crypto@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] crypto: img-hash: remove need for error return variable ret
Date: Fri, 10 Sep 2021 13:15:32 +0100	[thread overview]
Message-ID: <20210910121532.50366-1-colin.king@canonical.com> (raw)

From: Colin Ian King <colin.king@canonical.com>

The assignment to error return variable ret and then the jump to
an error exit path can be simplified by just returning the error
return at the failure point. This allows variable ret and the
error return path to be removed. This cleans up a static analysis
warninng that variable ret is being assigned (value never being
used) and being re-assigned later.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/crypto/img-hash.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c
index aa4c7b2af3e2..d8e82d69745d 100644
--- a/drivers/crypto/img-hash.c
+++ b/drivers/crypto/img-hash.c
@@ -674,14 +674,12 @@ static int img_hash_digest(struct ahash_request *req)
 static int img_hash_cra_init(struct crypto_tfm *tfm, const char *alg_name)
 {
 	struct img_hash_ctx *ctx = crypto_tfm_ctx(tfm);
-	int err = -ENOMEM;
 
 	ctx->fallback = crypto_alloc_ahash(alg_name, 0,
 					   CRYPTO_ALG_NEED_FALLBACK);
 	if (IS_ERR(ctx->fallback)) {
 		pr_err("img_hash: Could not load fallback driver.\n");
-		err = PTR_ERR(ctx->fallback);
-		goto err;
+		return PTR_ERR(ctx->fallback);
 	}
 	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
 				 sizeof(struct img_hash_request_ctx) +
@@ -689,9 +687,6 @@ static int img_hash_cra_init(struct crypto_tfm *tfm, const char *alg_name)
 				 IMG_HASH_DMA_THRESHOLD);
 
 	return 0;
-
-err:
-	return err;
 }
 
 static int img_hash_cra_md5_init(struct crypto_tfm *tfm)
-- 
2.32.0


             reply	other threads:[~2021-09-10 12:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-10 12:15 Colin King [this message]
2021-09-17  3:21 ` Herbert Xu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210910121532.50366-1-colin.king@canonical.com \
    --to=colin.king@canonical.com \
    --cc=davem@davemloft.net \
    --cc=herbert@gondor.apana.org.au \
    --cc=kernel-janitors@vger.kernel.org \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: [PATCH] crypto: img-hash: remove need for error return variable ret' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).