staging: comedi: usbduxfast: remove 'attached' from private data
The subdevice function pointers are only setup if the device is attached. The 'attached' flag in the private data is unnecessary. Remove it. Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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