cifsd: fix wrong return value in ksmbd_crypt_message()

Change error return instead of returning always success return.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifsd/auth.c

@@ -1253,7 +1253,7 @@ int ksmbd_crypt_message(struct ksmbd_conn *conn, struct kvec *iov,
 				      key);
 	if (rc) {
 		ksmbd_err("Could not get %scryption key\n", enc ? "en" : "de");
-		return 0;
+		return rc;
 	}
 
 	if (conn->cipher_type == SMB2_ENCRYPTION_AES128_GCM ||