Commit cfa6fde2 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by David S. Miller
Browse files

sctp: pass a kernel pointer to sctp_setsockopt_recvnxtinfo 



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 a98af7c8

net/sctp/socket.c

+3 −8
Original line number Diff line number Diff line
@@ -3913,18 +3913,13 @@ static int sctp_setsockopt_recvrcvinfo(struct sock *sk, int *val, 
	return 0;

}



static int sctp_setsockopt_recvnxtinfo(struct sock *sk,

				       char __user *optval,

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

				       unsigned int optlen)

{

	int val;



	if (optlen < sizeof(int))

		return -EINVAL;

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

		return -EFAULT;



	sctp_sk(sk)->recvnxtinfo = (val == 0) ? 0 : 1;

	sctp_sk(sk)->recvnxtinfo = (*val == 0) ? 0 : 1;



	return 0;

}
@@ -4693,7 +4688,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, 
		retval = sctp_setsockopt_recvrcvinfo(sk, kopt, optlen);

		break;

	case SCTP_RECVNXTINFO:

		retval = sctp_setsockopt_recvnxtinfo(sk, optval, optlen);

		retval = sctp_setsockopt_recvnxtinfo(sk, kopt, optlen);

		break;

	case SCTP_PR_SUPPORTED:

		retval = sctp_setsockopt_pr_supported(sk, optval, optlen);