4.15-stable review patch.  If anyone has any objections, please let me know.


From: Zhengjun Xing <zhengjun.x...@linux.intel.com>

commit 8c5a93ebf7ac56d47f879b3c7c2f8c83b40c2cdb upstream.

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: <sta...@vger.kernel.org> # v4.15
Signed-off-by: Zhengjun Xing <zhengjun.x...@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

 drivers/usb/host/xhci.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3552,12 +3552,10 @@ static void xhci_free_dev(struct usb_hcd
                virt_dev->eps[i].ep_state &= ~EP_STOP_CMD_PENDING;
+       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)

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