This is a note to let you know that I've just added the patch titled
crypto: sun8i-ss - fix a NULL vs IS_ERR() check in sun8i_ss_hashkey
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-sun8i-ss-fix-a-null-vs-is_err-check-in-sun8i_.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 331c032191683a72689785d251cd03ba26ef52c8
Author: Peng Wu <wupeng58@xxxxxxxxxx>
Date: Thu Jun 2 07:22:34 2022 +0000
crypto: sun8i-ss - fix a NULL vs IS_ERR() check in sun8i_ss_hashkey
[ Upstream commit 7e8df1fc2d669d04c1f8a9e2d61d7afba1b43df4 ]
The crypto_alloc_shash() function never returns NULL. It returns error
pointers.
Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)")
Signed-off-by: Peng Wu <wupeng58@xxxxxxxxxx>
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index 845019bd9591..36a82b22953c 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
@@ -30,8 +30,8 @@ static int sun8i_ss_hashkey(struct sun8i_ss_hash_tfm_ctx *tfmctx, const u8 *key,
int ret = 0;
xtfm = crypto_alloc_shash("sha1", 0, CRYPTO_ALG_NEED_FALLBACK);
- if (!xtfm)
- return -ENOMEM;
+ if (IS_ERR(xtfm))
+ return PTR_ERR(xtfm);
len = sizeof(*sdesc) + crypto_shash_descsize(xtfm);
sdesc = kmalloc(len, GFP_KERNEL);
