staging: comedi: pcl818: clarify dma channel request in pcl818_attach()
All the board types that can do DMA can use DMA channels 3 or 1. Remove the 'DMAbits', which is a mask of the valid channels, from the boardinfo and replace it with a bit-field flag 'has_dma'. Refactor pcl818_attach() to use the new flag and remove the need for the goto. 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>
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