USB: correct the usb_disconnect() comment about usb_bus_list_lock
usb_disconnect() no longer acquires usb_bus_list_lock, so update its comment to that effect. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -2023,8 +2023,8 @@ static void hub_free_dev(struct usb_device *udev)
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* Something got disconnected. Get rid of it and all of its children.
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*
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* If *pdev is a normal device then the parent hub must already be locked.
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* If *pdev is a root hub then this routine will acquire the
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* usb_bus_list_lock on behalf of the caller.
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* If *pdev is a root hub then the caller must hold the usb_bus_list_lock,
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* which protects the set of root hubs as well as the list of buses.
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*
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* Only hub drivers (including virtual root hub drivers for host
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* controllers) should ever call this.
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