From: Colin King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
To: Herbert Xu
<herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>,
"David S . Miller"
<davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Ryder Lee <ryder.lee-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
linux-crypto-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] crypto: mediatek: don't return garbage err on successful return
Date: Tue, 3 Jan 2017 13:21:22 +0000 [thread overview]
Message-ID: <20170103132122.26900-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
In the case where keylen <= bs mtk_sha_setkey returns an uninitialized
return value in err. Fix this by returning 0 instead of err.
Issue detected by static analysis with cppcheck.
Signed-off-by: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
---
drivers/crypto/mediatek/mtk-sha.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/mediatek/mtk-sha.c b/drivers/crypto/mediatek/mtk-sha.c
index 8951363..8e1b440 100644
--- a/drivers/crypto/mediatek/mtk-sha.c
+++ b/drivers/crypto/mediatek/mtk-sha.c
@@ -878,7 +878,7 @@ static int mtk_sha_setkey(struct crypto_ahash *tfm,
bctx->opad[i] ^= 0x5c;
}
- return err;
+ return 0;
}
static int mtk_sha_export(struct ahash_request *req, void *out)
--
2.10.2
next reply other threads:[~2017-01-03 13:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-03 13:21 Colin King [this message]
2017-01-12 16:39 ` [PATCH] crypto: mediatek: don't return garbage err on successful return Herbert Xu
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