staging: comedi: rtd520: remove broken USE_DMA code
authorH Hartley Sweeten <hartleys@visionengravers.com>
Mon, 29 Oct 2012 17:03:01 +0000 (10:03 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 30 Oct 2012 17:44:37 +0000 (10:44 -0700)
It appears the dma code in this driver is seriously broken.
Enabling USE_DMA causes the driver to not even compile.

Just remove all the dma code for now.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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