xhci: xhci debugfs device nodes weren't removed after device plugged out

There is a bug after plugged out USB device, the device and its ep00
nodes are still kept, we need to remove the nodes in xhci_free_dev when
USB device is plugged out.

Fixes: 052f71e25a7e ("xhci: Fix xhci debugfs NULL pointer dereference in resume from hibernate")
Cc: <stable@vger.kernel.org> # v4.15
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b01bd64..4adb6da 100644 (file)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3545,12 +3545,10 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
                virt_dev->eps[i].ep_state &= ~EP_STOP_CMD_PENDING;
                del_timer_sync(&virt_dev->eps[i].stop_cmd_timer);
        }
-
+       xhci_debugfs_remove_slot(xhci, udev->slot_id);
        ret = xhci_disable_slot(xhci, udev->slot_id);
-       if (ret) {
-               xhci_debugfs_remove_slot(xhci, udev->slot_id);
+       if (ret)
                xhci_free_virt_device(xhci, udev->slot_id);
-       }
 }
 
 int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id)