From e9edef3a5454a19fd0d0c342cc88b6310b871a48 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 6 May 2014 13:12:09 +0100
Subject: [PATCH] staging: comedi: pass subdevice to
 comedi_buf_read_n_available()

Change the parameters of `comedi_buf_read_n_available()` to pass a
pointer to the comedi subdevice instead of a pointer to the "async"
structure belonging to the subdevice.

The main aim at the moment is to replace all the `struct comedi_async *`
parameters with `struct comedi_subdevice *` parameters in the comedi
driver API.

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