From 351a7bffbd4a02dd8a46209a4c6582860a72601d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 18 Sep 2014 11:35:40 -0700
Subject: [PATCH] staging: comedi: rtd520: clear FIFO when canceling async
 command

Clear the A/D FIFO as part of the analog input (*cancel) to help with
cleaning up the async command.

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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Reading git-format-patch failed