From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 23 Feb 2015 21:58:00 +0000 (-0700)
Subject: staging: comedi: amplc_dio200_common: remove 'spinlock' from struct dio200_subdev_8254
X-Git-Tag: omap-for-v4.2/o2_dc~155^2~138^2~719
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99ca4e4613da5cb589de6b4127de75e520b32b43;p=pandora-kernel.git

staging: comedi: amplc_dio200_common: remove 'spinlock' from struct dio200_subdev_8254

Currently this driver uses a spinlock in the 8254 subdevice (*insn_read), (*insn_write),
and (*insn_config) functions. The comedi core checks if the subdevice is 'busy', in
parse_insn(), before any of the subdevice functions are attempted.

Remove the unnecessary spinlock.

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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