From: YueHaibing <yuehaibing@huawei.com>
Date: Mon, 21 Jan 2019 07:57:00 +0000 (+0000)
Subject: crypto: seqiv - Use kmemdup in seqiv_aead_encrypt()
X-Git-Tag: microblaze-v5.4-rc1~1136^2~95
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=7e33d4d48974e06745514a68c8b1670e5006a4dd;p=linux-2.6-microblaze.git

crypto: seqiv - Use kmemdup in seqiv_aead_encrypt()

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/seqiv.c b/crypto/seqiv.c
index 64a412be255e..ed1b0e9f2436 100644
--- a/crypto/seqiv.c
+++ b/crypto/seqiv.c
@@ -89,13 +89,12 @@ static int seqiv_aead_encrypt(struct aead_request *req)
 
 	if (unlikely(!IS_ALIGNED((unsigned long)info,
 				 crypto_aead_alignmask(geniv) + 1))) {
-		info = kmalloc(ivsize, req->base.flags &
-				       CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL:
-								  GFP_ATOMIC);
+		info = kmemdup(req->iv, ivsize, req->base.flags &
+			       CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
+			       GFP_ATOMIC);
 		if (!info)
 			return -ENOMEM;
 
-		memcpy(info, req->iv, ivsize);
 		compl = seqiv_aead_encrypt_complete;
 		data = req;
 	}