Commit 10835825 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by David S. Miller
Browse files

sctp: pass a kernel pointer to sctp_setsockopt_disable_fragments 



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 ce5b2f89

net/sctp/socket.c

+3 −11
Original line number Diff line number Diff line
@@ -2184,20 +2184,12 @@ static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 
 * exceeds the current PMTU size, the message will NOT be sent and

 * instead a error will be indicated to the user.

 */

static int sctp_setsockopt_disable_fragments(struct sock *sk,

					     char __user *optval,

static int sctp_setsockopt_disable_fragments(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)->disable_fragments = (val == 0) ? 0 : 1;



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

	return 0;

}
@@ -4701,7 +4693,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, 
		break;



	case SCTP_DISABLE_FRAGMENTS:

		retval = sctp_setsockopt_disable_fragments(sk, optval, optlen);

		retval = sctp_setsockopt_disable_fragments(sk, kopt, optlen);

		break;



	case SCTP_EVENTS: