USB: xHCI: Add pointer to udev in struct xhci_virt_device

Add a pointer to udev in struct xhci_virt_device. When allocate a new
virt_device, make the pointer point to the corresponding udev.

Modify xhci_check_args(), check if virt_dev->udev matches the target udev,
to make sure command is issued to the right device.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 34a60d9f056a..f03f140a7d9a 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -731,6 +731,7 @@ struct xhci_virt_ep {
 };
 
 struct xhci_virt_device {
+        struct usb_device               *udev;
         /*
          * Commands to the hardware are passed an "input context" that
          * tells the hardware what to change in its data structures.