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: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 67861a8..1e78827 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4170,7 +4170,7 @@
 		to += addrlen;
 		cnt ++;
 		space_left -= addrlen;
-		bytes_copied += addrlen;
+		*bytes_copied += addrlen;
 	}
 
 	return cnt;