From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 5 Jun 2013 22:37:06 +0000 (-0700)
Subject: staging: comedi: pcmad: tidy up pcmad_ai_insn_read()
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~76^2~244
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3275b4d3db1f087c67fa115b150a9d2f9d8429f9;p=pandora-kernel.git

staging: comedi: pcmad: tidy up pcmad_ai_insn_read()

Use a local variable to read and munge the analog input data instead
of directly using the 'data' pointer passed to the function.

(*insn_read) functions either return an errno or the number of data
values read. Change the final return to insn->n to make this clearer.

Tidy up the function.

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