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Diffstat (limited to 'hw/virtio-serial-bus.c')
-rw-r--r--hw/virtio-serial-bus.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index 82073f5dc..d20bd8bf7 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -287,6 +287,7 @@ ssize_t virtio_serial_write(VirtIOSerialPort *port, const uint8_t *buf,
size_t virtio_serial_guest_ready(VirtIOSerialPort *port)
{
VirtQueue *vq = port->ivq;
+ unsigned int bytes;
if (!virtio_queue_ready(vq) ||
!(port->vser->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK) ||
@@ -296,14 +297,8 @@ size_t virtio_serial_guest_ready(VirtIOSerialPort *port)
if (use_multiport(port->vser) && !port->guest_connected) {
return 0;
}
-
- if (virtqueue_avail_bytes(vq, 4096, 0)) {
- return 4096;
- }
- if (virtqueue_avail_bytes(vq, 1, 0)) {
- return 1;
- }
- return 0;
+ virtqueue_get_avail_bytes(vq, &bytes, NULL);
+ return bytes;
}
static void flush_queued_data_bh(void *opaque)