After my last few changesets there were a few small items that needed to
be tidied up.

	Update kerneldoc to reflect the actual operation of
	usb_disconnect() and usb_new_device().  The new locking
	requirements are listed too, though they aren't all
	implemented yet.

	Fulfill the new locking requirement in hcd_panic().

	Remove unneeded local variables to conserve stack space in
	usb_disconnect(), which calls itself recursively.

	In hub_port_connect_change(), store the parent's children[]
	pointer as late as possible and don't lock the new device until
	then (that's when it becomes globally accessible).  This will
	minimize the time that the not-fully-configured device structure
	is visible to other parts of the kernel.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>