From 6f216c966cfc0fb585fd8f628287d3c5100b38fa Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 9 Dec 2013 15:30:48 -0700
Subject: [PATCH] staging: comedi: pcmmio: return error if ao conversion times
 out

Rename wait_dac_ready() so it has namespace associated with the
driver.

Fix the function so it returns an errno if the conversion times
out. Propogate this errno if it happens.

Define the analog output status register to remove the magic numbers.

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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