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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>
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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