From fb780d213355868b69cc12142635aae5e0ee7c2a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 3 Feb 2014 11:26:51 -0700
Subject: [PATCH] staging: comedi: drivers: return '0' for successful attach

The comedi core expects the driver attach functions to return a
negative errno for failure. Any other value indicates success.

For consistency in the drivers, make sure they all return '0' to
indicate success.

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