From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 17 Apr 2014 17:08:04 +0000 (-0700)
Subject: staging: comedi: ni_labpc: clarify the cmd->start_arg validation
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~39^2~36^2~1322
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c55881686302a5e7f19b82f0a163beec2cc314c3;p=pandora-kernel.git

staging: comedi: ni_labpc: clarify the cmd->start_arg validation

This driver supports cmd->start_src sources of TRIG_NOW and TRIG_EXT.
Refactor the (*do_cmdtest) to clarify the trivial validation of the
cmd->start_arg.

This also fixes a bug, the cmd->start_src has the trigger not the
cmd->start_arg.

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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