Commit a4262466 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by David S. Miller
Browse files

sctp: pass a kernel pointer to sctp_setsockopt_reuse_port 



Use the kernel pointer that sctp_setsockopt has available instead of
directly handling the user pointer.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5b8d3b24

net/sctp/socket.c

+3 −8
Original line number Diff line number Diff line
@@ -4214,11 +4214,9 @@ static int sctp_setsockopt_interleaving_supported(struct sock *sk, 
	return 0;

}



static int sctp_setsockopt_reuse_port(struct sock *sk, char __user *optval,

static int sctp_setsockopt_reuse_port(struct sock *sk, int *val,

				      unsigned int optlen)

{

	int val;



	if (!sctp_style(sk, TCP))

		return -EOPNOTSUPP;
@@ -4228,10 +4226,7 @@ static int sctp_setsockopt_reuse_port(struct sock *sk, char __user *optval, 
	if (optlen < sizeof(int))

		return -EINVAL;



	if (get_user(val, (int __user *)optval))

		return -EFAULT;



	sctp_sk(sk)->reuse = !!val;

	sctp_sk(sk)->reuse = !!*val;



	return 0;

}
@@ -4645,7 +4640,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, 
								optlen);

		break;

	case SCTP_REUSE_PORT:

		retval = sctp_setsockopt_reuse_port(sk, optval, optlen);

		retval = sctp_setsockopt_reuse_port(sk, kopt, optlen);

		break;

	case SCTP_EVENT:

		retval = sctp_setsockopt_event(sk, optval, optlen);