From 99b21f22d2b6708bfe06507d5f8a6955766f8b27 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 12 Jan 2015 10:55:45 -0700
Subject: [PATCH] staging: comedi: das1800: introduce das1800_free_dma()

For aesthetics, introduce a helper function to free the DMA channels and
allocated buffers.

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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