linux-kernel - asus_atk0110: Use non-deprecated registration and managed memory

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Date:   Fri,  1 Jun 2018 17:14:17 +0200
From:   Bastian Germann <bastiangermann@...hpost.de>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Luca Tettamanti <kronos.it@...il.com>,
        Jean Delvare <jdelvare@...e.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: asus_atk0110: Use non-deprecated registration and managed memory

This is version 4 of my previously unversioned patch.

Version 2 addresses the issues brought up by Guenter.
The two v1 patches are joined in v2 1/2.
The unnecessary dynamic allocations are now part of the atk_data struct.
devm_kcalloc is used for the attribute array that is created from sensors.
v2 2/2 replaces all dynamic allocations in the driver with the device
managed devm_* versions. All corresponding kfree calls are removed.

Version 3 addresses the issue brought up by Andy.
v3 1/2 is unchanged. v3 2/2 reverses one of the devm_kzalloc changes of v2
because it introduces a memory leak.

v4 1/2 changes the attr_group field to only contain one item.
v4 2/2 is unchanged.