From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 12 May 2012 13:39:32 +0000 (+0200)
Subject: iio: Add dev_to_iio_dev() helper function
X-Git-Tag: v3.5-rc1~145^2~106
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a7913f11ddf932e20d2bde72bec57f2f7a9b49e;p=pandora-kernel.git

iio: Add dev_to_iio_dev() helper function

This patch adds a helper function for retriving a iio_dev struct from a device
struct. Currently we open-code this in two different ways. One is using
dev_get_drvdata on the device and the other is using container_of. The new
helper function uses the container_of solution as it creates slightly smaller
code and also will eventually free up the drvdata pointer for usage by invidual
drivers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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