The (*attach) in ni_E_init() sets the dev->write_subdev to the analog
output subdevice. Use that instead of accessing the dev->subdevices
array directly.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>