From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 17 Apr 2014 17:08:10 +0000 (-0700)
Subject: staging: comedi: usbdux: fix the cmd->start_arg use
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~39^2~36^2~1316
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7d8b7b4d92bc05d49966adb158b43655e687e20b;p=pandora-kernel.git

staging: comedi: usbdux: fix the cmd->start_arg use

For all cmd->start_src values this driver trivially validates that the
cmd->start_arg is 0.

For a TRIG_INT source, the cmd->start_arg is actually the valid trig_num
that is used by the async (*inttrig) callback.

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

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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