From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 9 Jan 2013 20:31:16 +0000 (-0700)
Subject: staging: comedi: comedi_buf: clarify comedi_buf_read_free()
X-Git-Tag: v3.9-rc1~127^2~432
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3abfa1066b9e98df434868eda9ba91d7012d45c6;p=pandora-kernel.git

staging: comedi: comedi_buf: clarify comedi_buf_read_free()

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

Clarify the check to make sure the number of bytes to free is not
more than the number of bytes allocated.

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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