Commit 8c5a93eb authored Feb 12, 2018 by Zhengjun Xing Committed by Greg Kroah-Hartman Feb 15, 2018

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: 052f71e2 ("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>

parent d9167671

drivers/usb/host/xhci.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -3545,13 +3545,11 @@ 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);
		}

		ret = xhci_disable_slot(xhci, udev->slot_id);
		if (ret) {
		xhci_debugfs_remove_slot(xhci, udev->slot_id);
		ret = xhci_disable_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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