[SCTP]: Use the flags value that is passed as an arg to sctp_accept.

No need to do multiple dereferences - sk->sk_socket->file->f_flags

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sctp/socket.c

@@ -2970,7 +2970,7 @@ SCTP_STATIC struct sock *sctp_accept(struct sock *sk, int flags, int *err)
 		goto out;
 	}
 
-	timeo = sock_rcvtimeo(sk, sk->sk_socket->file->f_flags & O_NONBLOCK);
+	timeo = sock_rcvtimeo(sk, flags & O_NONBLOCK);
 
 	error = sctp_wait_for_accept(sk, timeo);
 	if (error)