From 11e480c3a64355b55ac23aaa3250fcc85f260530 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 5 Aug 2015 10:45:07 -0700
Subject: [PATCH] staging: comedi: me4000: absorb ai_prepare()

This function never fails and it's only called by me4000_ai_do_cmd().

Absorb it and remove the unnecessary failure check.

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