linux-kernel - Re: [RFC PATCH 1/5] livepatch: Fix kobject memleak

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Message-ID: <20190502084620.vrtalu473z6wwo22@pathway.suse.cz>
Date:   Thu, 2 May 2019 10:46:20 +0200
From:   Petr Mladek <pmladek@...e.com>
To:     "Tobin C. Harding" <tobin@...nel.org>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        live-patching@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 1/5] livepatch: Fix kobject memleak

On Thu 2019-05-02 12:31:38, Tobin C. Harding wrote:
> Currently error return from kobject_init_and_add() is not followed by a
> call to kobject_put().  This means there is a memory leak.

Strictly speaking there is no real memory leak in this case because
the structures are either static and or freed later via
klp_free*() functions.

That said, we could do the kobject manipulation a more clear way
as discussed in the 5th patch.

Anyway, thanks for cleaning this.

Best Regards,
Petr