net/sctp: convert to ->poll_mask

Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 2e3f7b7..d52eaf1 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -1007,7 +1007,7 @@ static const struct proto_ops inet6_seqpacket_ops = {
 	.socketpair	   = sock_no_socketpair,
 	.accept		   = inet_accept,
 	.getname	   = sctp_getname,
-	.poll		   = sctp_poll,
+	.poll_mask	   = sctp_poll_mask,
 	.ioctl		   = inet6_ioctl,
 	.listen		   = sctp_inet_listen,
 	.shutdown	   = inet_shutdown,