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Commit 46b66d70 authored by Xi Wang's avatar Xi Wang Committed by David S. Miller
Browse files

decnet: fix shutdown parameter checking 



The allowed value of "how" is SHUT_RD/SHUT_WR/SHUT_RDWR (0/1/2),
rather than SHUTDOWN_MASK (3).

Signed-off-by: default avatarXi Wang <xi.wang@gmail.com>
Acked-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6c9ff979

net/decnet/af_decnet.c

+2 −2
Original line number Diff line number Diff line
@@ -1313,10 +1313,10 @@ static int dn_shutdown(struct socket *sock, int how) 
	if (scp->state == DN_O)

		goto out;



	if (how != SHUTDOWN_MASK)

	if (how != SHUT_RDWR)

		goto out;



	sk->sk_shutdown = how;

	sk->sk_shutdown = SHUTDOWN_MASK;

	dn_destroy_sock(sk);

	err = 0;