diff options
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index a697f1455f8d..1b685485a5b5 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3676,14 +3676,20 @@ static int do_tcp_getsockopt(struct sock *sk, int level, lock_sock(sk); err = tcp_zerocopy_receive(sk, &zc); release_sock(sk); + if (len == sizeof(zc)) + goto zerocopy_rcv_sk_err; switch (len) { - case sizeof(zc): + case offsetofend(struct tcp_zerocopy_receive, err): + goto zerocopy_rcv_sk_err; case offsetofend(struct tcp_zerocopy_receive, inq): goto zerocopy_rcv_inq; case offsetofend(struct tcp_zerocopy_receive, length): default: goto zerocopy_rcv_out; } +zerocopy_rcv_sk_err: + if (!err) + zc.err = sock_error(sk); zerocopy_rcv_inq: zc.inq = tcp_inq_hint(sk); zerocopy_rcv_out: |