From 530376bfb7c82f50f20f9d28acd017194894eb66 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 9 Dec 2013 11:32:58 -0700
Subject: [PATCH] staging: comedi: ni_at_a2150: fix an always true condition
 test

As pointed out by the kbuild test robot, and Ian Abbott, the dma >= 0 test
is always true because dma is unsigned. This generates a warn message:

drivers/staging/comedi/drivers/ni_at_a2150.c:715 a2150_attach()
  warn: always true condition '(dma >= 0) => (0-u32max >= 0)'

Fix the test as suggested by Ian Abbott.

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