[Qemu-devel] [PATCH 14/17] uhci: When the guest marks a pending td non-active, cancel the queue

[Hans de Goede <hdegoede@redhat.com>]

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 hw/usb/hcd-uhci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
index c4f2f98..592ad8d 100644
--- a/hw/usb/hcd-uhci.c
+++ b/hw/usb/hcd-uhci.c
@@ -821,6 +821,10 @@ static int uhci_handle_td(UHCIState *s, UHCIQueue *q, uint32_t qh_addr,
 
     /* Is active ? */
     if (!(td->ctrl & TD_CTRL_ACTIVE)) {
+        if (async) {
+            /* Guest marked a pending td non-active, cancel the queue */
+            uhci_queue_free(async->queue, "pending td non-active");
+        }
         /*
          * ehci11d spec page 22: "Even if the Active bit in the TD is already
          * cleared when the TD is fetched ... an IOC interrupt is generated"
-- 
1.7.12.1