missing changes during ntlmv2/ntlmssp auth and sign

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 051d000..eef78c2 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -553,6 +553,8 @@
 		return 1;
 	}
 
+	desc.tfm = tfm_arc4;
+
 	crypto_blkcipher_setkey(tfm_arc4,
 		server->session_key.data.ntlmv2.key, CIFS_CPHTXT_SIZE);
 	sg_init_one(&sgin, sec_key, CIFS_CPHTXT_SIZE);