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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: 052f71e25a ("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>
This commit is contained in:
Zhengjun Xing 2018-02-12 14:24:50 +02:00 committed by Greg Kroah-Hartman
parent d916767172
commit 8c5a93ebf7
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/host/xhci.c
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@ -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)