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USB: correct the usb_disconnect() comment about usb_bus_list_lock

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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>
This commit is contained in:
Bjorn Helgaas 2013-09-13 13:57:34 -06:00 committed by Greg Kroah-Hartman
parent 232275a089
commit db8f2aa358
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/core/hub.c
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@ -2023,8 +2023,8 @@ static void hub_free_dev(struct usb_device *udev)
* Something got disconnected. Get rid of it and all of its children.
*
* If *pdev is a normal device then the parent hub must already be locked.
* If *pdev is a root hub then this routine will acquire the
* usb_bus_list_lock on behalf of the caller.
* If *pdev is a root hub then the caller must hold the usb_bus_list_lock,
* which protects the set of root hubs as well as the list of buses.
*
* Only hub drivers (including virtual root hub drivers for host
* controllers) should ever call this.