From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 4 Mar 2015 19:15:33 +0000 (-0700)
Subject: staging: comedi: mite: (!foo) preferred over (foo == NULL)
X-Git-Tag: omap-for-v4.1/fixes-rc1~165^2~138^2~597
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5effdf708100fd5eeeaa8c7bbbed3b90cbb70cf5;p=pandora-kernel.git

staging: comedi: mite: (!foo) preferred over (foo == NULL)

Also, clarify the 'ring' allocation failure by returning NULL instead
of 'ring' (which would be NULL).

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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