Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp466689yba;
        Wed, 15 May 2019 04:37:22 -0700 (PDT)
X-Google-Smtp-Source: APXvYqwzkR09aDzzubX0kDh1/lkOKVweAPmGoJWrVVV8Xb51dvMZh1f6cKqdBv80wcGiCj9qPSv7
X-Received: by 2002:a63:5c45:: with SMTP id n5mr1219640pgm.172.1557920242638;
        Wed, 15 May 2019 04:37:22 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1557920242; cv=none;
        d=google.com; s=arc-20160816;
        b=ayFECCNQMTPkjrrdX9avyuEDunTc5VWUvswR8zrY18RcITKLgp2FnW24fijNSbhcL0
         FAnaUFzkikB14qwuapgG4YL+MgZPH+a8wBLjv4eqe35MV9OD3t/oiNQSnVphDDGkPgqH
         jHiQtMbRW6p6DWiE6YIyWI/v3Wkaj/V/NTzbO8C7PDttrv90sKHnvex+xf+Z3OKGzXZa
         k+iMqOv0eut2okyBtwu3KexswxvUsgbaWbMVV08umxqKrSS/yvLq2cYlzuXiZEWYZfxh
         jMzTrbkCRW2Z6NvY2OU6tcH25Sqz7A2wDzKOUw61IYBtFyZEkoRCmp3R5Fhzx0j/IwNh
         sSMQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:user-agent:in-reply-to
         :content-disposition:mime-version:references:message-id:subject:cc
         :to:from:date:dkim-signature;
        bh=UKdAqxo5hGOoDMAl9NLSkpt4zg9p5OCAItHb4xUscto=;
        b=ZW25LE3vJ5gGfqV+PHMumERoyvIvuxWrZoTPvXOLbzOh4JWChVfl0YNUIXiByR55Ai
         ns5uwJFbX3b56LhrKKvWbB+CXtmtkaqKjLQLrIgjHpaAkvgGc970h8xN3nu5/LH0y2eH
         Kdy5PmQHr+u+p+lJ9ov4rCHMjVaWYkNPv6nbWWIxrJfwKq6upX5PvFQ4syaMtqqjdXVS
         ZzZYT7CyRgp+ENxxvFJMnPQ/ScNrrfTn7KsJyeZevtf/bWm/pHuyFF++qHEgeojrsy1x
         E6znjdTB4tC18XgxTcGx1w5QWIY8Iyq8c49+G7VOC5O4aNT8d3DgAYsDIiOV+3Kiy/zf
         N/dA==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@kernel.org header.s=default header.b=0INscPJU;
       spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67])
        by mx.google.com with ESMTP id v4si1504607plp.404.2019.05.15.04.37.08;
        Wed, 15 May 2019 04:37:22 -0700 (PDT)
Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@kernel.org header.s=default header.b=0INscPJU;
       spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1732867AbfEOLe0 (ORCPT <rfc822;7819ynot@gmail.com> + 99 others);
        Wed, 15 May 2019 07:34:26 -0400
Received: from mail.kernel.org ([198.145.29.99]:46472 "EHLO mail.kernel.org"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1727283AbfEOLeZ (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 15 May 2019 07:34:25 -0400
Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107])
        (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
        (No client certificate requested)
        by mail.kernel.org (Postfix) with ESMTPSA id 522922053B;
        Wed, 15 May 2019 11:34:24 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;
        s=default; t=1557920064;
        bh=UKdAqxo5hGOoDMAl9NLSkpt4zg9p5OCAItHb4xUscto=;
        h=Date:From:To:Cc:Subject:References:In-Reply-To:From;
        b=0INscPJUwspjjab4+Ys0uyPkmH3TYHvz0F5xmbtnQ+A6D3MDwqBqNrbGh64zhPHAH
         qkrpQ3WdcqkqAIQNM97IqfuuML5BH9yZH5XjOzjncOvYvGckk/vCJnSBkG+x4QATpQ
         Te7wIAaisgKKB5rhWXwslNrfah0Qp0vHk/YHWt+4=
Date:   Wed, 15 May 2019 13:30:19 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Christophe Leroy <christophe.leroy@c-s.fr>
Cc:     "Tobin C. Harding" <tobin@kernel.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] powerpc: Remove double free
Message-ID: <20190515113019.GB11749@kroah.com>
References: <20190515090750.30647-1-tobin@kernel.org>
 <aa001c3b-f96e-2078-0861-315613ec33a0@c-s.fr>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <aa001c3b-f96e-2078-0861-315613ec33a0@c-s.fr>
User-Agent: Mutt/1.11.4 (2019-03-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Wed, May 15, 2019 at 11:26:03AM +0200, Christophe Leroy wrote:
> kobject_put() released index_dir->kobj

Yes, but what is that kobject enclosed in?

> but who will release 'index' ?

The final kobject_put() will do that, see cacheinfo_create_index_dir()
for the details.

And please do not top-post, you lost all context.

greg k-h