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virtio-serial: Assert for virtio queue ready before virtqueue operations 

In addition to the previous fix for calling do_flush_queued_data() only
when the virtqueue is ready, ensure do_flush_queued_data() gets a vq
that's suitably initialised.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Amit Shah 2010-07-01 14:58:17 +05:30 committed by Anthony Liguori
parent 6b611d3ab8
commit fd11a78be8
1 changed files with 1 additions and 0 deletions
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hw/virtio-serial-bus.c
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@ -117,6 +117,7 @@ static void do_flush_queued_data(VirtIOSerialPort *port, VirtQueue *vq,
VirtQueueElement elem;
assert(port || discard);
assert(virtio_queue_ready(vq));
while ((discard || !port->throttled) && virtqueue_pop(vq, &elem)) {
uint8_t *buf;