SCTP: Fix thinko in sctp_copy_laddrs()

Correctly dereference bytes_copied in sctp_copy_laddrs().
I totally must have spaced when doing this.
Signed-off-by: NVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/sctp/socket.c

@@ -4170,7 +4170,7 @@ static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
 		to += addrlen;
 		cnt ++;
 		space_left -= addrlen;
-		bytes_copied += addrlen;
+		*bytes_copied += addrlen;
 	}
 
 	return cnt;