From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 9 Jan 2013 20:29:19 +0000 (-0700)
Subject: staging: comedi: comedi_buf: cleanup comedi_buf_munge()
X-Git-Tag: v3.9-rc1~127^2~436
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d4be669479d95a0c6eb4b6a538460f0ab35c4f7;p=pandora-kernel.git

staging: comedi: comedi_buf: cleanup comedi_buf_munge()

Refactor this function so there is a single return point and only
one BUG_ON check. The BUG_ON needs to be looked at to see if it
can be safely removed.

Clarify the test in the munge loop that checks for a block copy
that would extend pass the end of the prealloc_buf.

Reword the comment about the need for the smp_wmb().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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