Zebediah Figura : wineusb.sys: Implement URB_FUNCTION_ABORT_PIPE.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 66bdf9f77cc6f4491b9c361cc1f4f88ec5edbfe5
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=66bdf9f77cc6f4491b9c361cc...

Author: Zebediah Figura <z.figura12(a)gmail.com>
Date:   Fri Apr 17 18:03:08 2020 -0500

wineusb.sys: Implement URB_FUNCTION_ABORT_PIPE.

Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/wineusb.sys/wineusb.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/dlls/wineusb.sys/wineusb.c b/dlls/wineusb.sys/wineusb.c
index aa4f204415..6a979b9126 100644
--- a/dlls/wineusb.sys/wineusb.c
+++ b/dlls/wineusb.sys/wineusb.c
@@ -514,6 +514,27 @@ static NTSTATUS usb_submit_urb(struct usb_device *device, IRP *irp)
 
     switch (urb->UrbHeader.Function)
     {
+        case URB_FUNCTION_ABORT_PIPE:
+        {
+            LIST_ENTRY *entry, *mark;
+
+            /* The documentation states that URB_FUNCTION_ABORT_PIPE may
+             * complete before outstanding requests complete, so we don't need
+             * to wait for them. */
+            EnterCriticalSection(&wineusb_cs);
+            mark = &device->irp_list;
+            for (entry = mark->Flink; entry != mark; entry = entry->Flink)
+            {
+                IRP *queued_irp = CONTAINING_RECORD(entry, IRP, Tail.Overlay.ListEntry);
+
+                if ((ret = libusb_cancel_transfer(queued_irp->Tail.Overlay.DriverContext[0])) < 0)
+                    ERR("Failed to cancel transfer: %s\n", libusb_strerror(ret));
+            }
+            LeaveCriticalSection(&wineusb_cs);
+
+            return STATUS_SUCCESS;
+        }
+
         case URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:
         {
             struct _URB_BULK_OR_INTERRUPT_TRANSFER *req = &urb->UrbBulkOrInterruptTransfer;