From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 17 Apr 2014 17:08:02 +0000 (-0700)
Subject: staging: comedi: ni_pcidio: fix the cmd->start_arg use for TRIG_INT
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~39^2~36^2~1324
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e702c66c0724c09e8efb87cb6fff8100e988cdb0;p=pandora-kernel.git

staging: comedi: ni_pcidio: fix the cmd->start_arg use for TRIG_INT

This driver only a cmd->start_src of TRIG_NOW or TRIG_INT. The cmd->start_arg
is trivially validated for both sources to be 0. For a TRIG_INT source, the
cmd->start_arg is actually the valid trig_num that is passed to the async
(*inttrig) callback.

Refactor the (*inttrig) function so that the cmd->start_arg is used to check
the trig_num instead of the open coded value.

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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