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cifsd: fix memdup.cocci warnings 

fs/cifsd/smb2pdu.c:1177:27-34: WARNING opportunity for kmemdup

 Use kmemdup rather than duplicating its implementation

Generated by: scripts/coccinelle/api/memdup.cocci

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
kernel test robot 2021-04-02 12:17:24 +09:00 committed by Steve French
parent 822bc8ea51
commit 86f5297846
1 changed files with 2 additions and 4 deletions
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6
fs/cifsd/smb2pdu.c
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@ -1161,13 +1161,11 @@ static int alloc_preauth_hash(struct ksmbd_session *sess,
if (sess->Preauth_HashValue)
return 0;
sess->Preauth_HashValue = kmalloc(PREAUTH_HASHVALUE_SIZE, GFP_KERNEL);
sess->Preauth_HashValue = kmemdup(conn->preauth_info->Preauth_HashValue,
PREAUTH_HASHVALUE_SIZE, GFP_KERNEL);
if (!sess->Preauth_HashValue)
return -ENOMEM;
memcpy(sess->Preauth_HashValue,
conn->preauth_info->Preauth_HashValue,
PREAUTH_HASHVALUE_SIZE);
return 0;
}