staging: comedi: amplc_pci230: standardize error handling of subdev_8255_init()
The subdev_8255_init() call returns 0 for success of a negative errno for failure. For aesthetics, change the error test in this driver from (rc < 0) to simply (rc) to follow the style of the other users of this function. Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: NIan Abbott <abbotti@mev.co.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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