Commit ddb61a57 authored by Jens Axboe's avatar Jens Axboe Committed by David S. Miller

[TCP] tcp_read_sock: Allow recv_actor() return return negative error value.

tcp_read_sock() currently assumes that the recv_actor() only returns
number of bytes copied. For network splice receive, we may have to
return an error in some cases. So allow the actor to return a negative
error value.
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4b2a8fb3
......@@ -1064,7 +1064,11 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
break;
}
used = recv_actor(desc, skb, offset, len);
if (used <= len) {
if (used < 0) {
if (!copied)
copied = used;
break;
} else if (used <= len) {
seq += used;
copied += used;
offset += used;
......@@ -1086,7 +1090,7 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
tcp_rcv_space_adjust(sk);
/* Clean up data we have read: This will do ACK frames. */
if (copied)
if (copied > 0)
tcp_cleanup_rbuf(sk, copied);
return copied;
}
......
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