When memcpy_to_msg() fails in virtio_transport_seqpacket_do_dequeue(),
we already set `dequeued_len` with the negative error value returned
by memcpy_to_msg().
So we can directly check `dequeued_len` value instead of using a
dedicated flag variable to skip the copy path for the rest of
fragments.
Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
---
net/vmw_vsock/virtio_transport_common.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 23704a6bc437..f014ccfdd9c2 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -413,7 +413,6 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk,
struct virtio_vsock_pkt *pkt;
int dequeued_len = 0;
size_t user_buf_len = msg_data_left(msg);
- bool copy_failed = false;
bool msg_ready = false;
spin_lock_bh(&vvs->rx_lock);
@@ -426,7 +425,7 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk,
while (!msg_ready) {
pkt = list_first_entry(&vvs->rx_queue, struct virtio_vsock_pkt, list);
- if (!copy_failed) {
+ if (dequeued_len >= 0) {
size_t pkt_len;
size_t bytes_to_copy;
@@ -443,11 +442,9 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk,
err = memcpy_to_msg(msg, pkt->buf, bytes_to_copy);
if (err) {
- /* Copy of message failed, set flag to skip
- * copy path for rest of fragments. Rest of
+ /* Copy of message failed. Rest of
* fragments will be freed without copy.
*/
- copy_failed = true;
dequeued_len = err;
} else {
user_buf_len -= bytes_to_copy;
--
2.31.1
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