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

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
...@@ -3913,18 +3913,13 @@ static int sctp_setsockopt_recvrcvinfo(struct sock *sk, int *val, ...@@ -3913,18 +3913,13 @@ static int sctp_setsockopt_recvrcvinfo(struct sock *sk, int *val,
return 0; return 0;
} }
static int sctp_setsockopt_recvnxtinfo(struct sock *sk, static int sctp_setsockopt_recvnxtinfo(struct sock *sk, int *val,
char __user *optval,
unsigned int optlen) unsigned int optlen)
{ {
int val;
if (optlen < sizeof(int)) if (optlen < sizeof(int))
return -EINVAL; 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; return 0;
} }
...@@ -4693,7 +4688,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, ...@@ -4693,7 +4688,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname,
retval = sctp_setsockopt_recvrcvinfo(sk, kopt, optlen); retval = sctp_setsockopt_recvrcvinfo(sk, kopt, optlen);
break; break;
case SCTP_RECVNXTINFO: case SCTP_RECVNXTINFO:
retval = sctp_setsockopt_recvnxtinfo(sk, optval, optlen); retval = sctp_setsockopt_recvnxtinfo(sk, kopt, optlen);
break; break;
case SCTP_PR_SUPPORTED: case SCTP_PR_SUPPORTED:
retval = sctp_setsockopt_pr_supported(sk, optval, optlen); retval = sctp_setsockopt_pr_supported(sk, optval, optlen);
......
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