diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-19 09:21:57 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-20 03:26:42 +0200 |
| commit | 07e5035c6f1377e0f07d9dcaa1724c97ac56f543 (patch) | |
| tree | d71f437dfdb8a232c030634f776f5f220f274bb6 /net/sctp | |
| parent | sctp: pass a kernel pointer to sctp_setsockopt_maxseg (diff) | |
| download | linux-07e5035c6f1377e0f07d9dcaa1724c97ac56f543.tar.xz linux-07e5035c6f1377e0f07d9dcaa1724c97ac56f543.zip | |
sctp: pass a kernel pointer to sctp_setsockopt_adaptation_layer
Use the kernel pointer that sctp_setsockopt has available instead of
directly handling the user pointer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/socket.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index cc7d5430ad88..b29452f58ff9 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3336,17 +3336,14 @@ static int sctp_setsockopt_peer_primary_addr(struct sock *sk, return err; } -static int sctp_setsockopt_adaptation_layer(struct sock *sk, char __user *optval, +static int sctp_setsockopt_adaptation_layer(struct sock *sk, + struct sctp_setadaptation *adapt, unsigned int optlen) { - struct sctp_setadaptation adaptation; - if (optlen != sizeof(struct sctp_setadaptation)) return -EINVAL; - if (copy_from_user(&adaptation, optval, optlen)) - return -EFAULT; - sctp_sk(sk)->adaptation_ind = adaptation.ssb_adaptation_ind; + sctp_sk(sk)->adaptation_ind = adapt->ssb_adaptation_ind; return 0; } @@ -4700,7 +4697,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, retval = sctp_setsockopt_maxseg(sk, kopt, optlen); break; case SCTP_ADAPTATION_LAYER: - retval = sctp_setsockopt_adaptation_layer(sk, optval, optlen); + retval = sctp_setsockopt_adaptation_layer(sk, kopt, optlen); break; case SCTP_CONTEXT: retval = sctp_setsockopt_context(sk, optval, optlen); |