Merge http://linux-lksctp.bkbits.net/lksctp-2.5.work

into touki.austin.ibm.com:/home/jgrimm/bk/lksctp-2.5.work

net/sctp/socket.c

@@ -2279,7 +2279,9 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
 
 	if (copy_to_user(optval, &params, len))
 		return -EFAULT;
-	*optlen = len;
+
+	if (put_user(len, optlen))
+		return -EFAULT;
 
 	return 0;
 }