return q;
}
+static void ehci_cancel_queue(EHCIQueue *q)
+{
+ EHCIPacket *p;
+
+ p = QTAILQ_FIRST(&q->packets);
+ if (p == NULL) {
+ return;
+ }
+
+ trace_usb_ehci_queue_action(q, "cancel");
+ do {
+ ehci_free_packet(p);
+ } while ((p = QTAILQ_FIRST(&q->packets)) != NULL);
+}
+
static void ehci_free_queue(EHCIQueue *q)
{
EHCIQueueHead *head = q->async ? &q->ehci->aqueues : &q->ehci->pqueues;
- EHCIPacket *p;
trace_usb_ehci_queue_action(q, "free");
- while ((p = QTAILQ_FIRST(&q->packets)) != NULL) {
- ehci_free_packet(p);
- }
+ ehci_cancel_queue(q);
QTAILQ_REMOVE(head, q, next);
g_free(q);
}
if (q->dev != NULL && q->dev->addr != devaddr) {
if (!QTAILQ_EMPTY(&q->packets)) {
/* should not happen (guest bug) */
- while ((p = QTAILQ_FIRST(&q->packets)) != NULL) {
- ehci_free_packet(p);
- }
+ ehci_cancel_queue(q);
}
q->dev = NULL;
}
ehci_trace_qtd(q, NLPTR_GET(q->qtdaddr), &qtd);
p = QTAILQ_FIRST(&q->packets);
- while (p != NULL && p->qtdaddr != q->qtdaddr) {
+ if (p != NULL && p->qtdaddr != q->qtdaddr) {
/* should not happen (guest bug) */
- ehci_free_packet(p);
- p = QTAILQ_FIRST(&q->packets);
+ ehci_cancel_queue(q);
+ p = NULL;
}
if (p != NULL) {
ehci_qh_do_overlay(q);