linux-kernel - Re: [PATCH] i2c: drop ancient protection against sysfs refcounting issues

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Date:	Mon, 19 Jan 2015 19:12:10 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Wolfram Sang <wsa@...-dreams.de>
Cc:	linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
	Julia Lawall <julia.lawall@...6.fr>,
	linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, Jean Delvare <jdelvare@...e.de>
Subject: Re: [PATCH] i2c: drop ancient protection against sysfs refcounting
 issues

On Mon, Jan 19, 2015 at 07:55:56PM +0100, Wolfram Sang wrote:
> Back in the days, sysfs seemed to have refcounting issues and subsystems
> needed a completion to be safe. This is not the case anymore, so I2C can
> get rid of this code. There is noone else besides I2C doing something
> like this currently (checked with the attached coccinelle script which
> checks if a release function exists and if it contains a completion).

Have you validated this with DEBUG_KOBJECT_RELEASE enabled?

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