diff options
| -rw-r--r-- | hw/usb/hcd-ehci.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index d87aca8..2534394 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -2076,7 +2076,7 @@ static int ehci_state_horizqh(EHCIQueue *q) return again; } -static void ehci_fill_queue(EHCIPacket *p) +static int ehci_fill_queue(EHCIPacket *p) { EHCIQueue *q = p->queue; EHCIqtd qtd = p->qtd; @@ -2100,9 +2100,13 @@ static void ehci_fill_queue(EHCIPacket *p) p->qtdaddr = qtdaddr; p->qtd = qtd; p->usb_status = ehci_execute(p, "queue"); + if (p->usb_status == USB_RET_PROCERR) { + break; + } assert(p->usb_status == USB_RET_ASYNC); p->async = EHCI_ASYNC_INFLIGHT; } + return p->usb_status; } static int ehci_state_execute(EHCIQueue *q) @@ -2144,8 +2148,7 @@ static int ehci_state_execute(EHCIQueue *q) trace_usb_ehci_packet_action(p->queue, p, "async"); p->async = EHCI_ASYNC_INFLIGHT; ehci_set_state(q->ehci, q->async, EST_HORIZONTALQH); - again = 1; - ehci_fill_queue(p); + again = (ehci_fill_queue(p) == USB_RET_PROCERR) ? -1 : 1; goto out; } |