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>

1 files changed, 3 insertions, 4 deletions

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;
         }