From:   John Ogness <john.ogness@linutronix.de>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Chris Down <chris@chrisdown.name>,
        Petr Mladek <pmladek@suse.com>,
        Sergey Senozhatsky <senozhatsky@chromium.org>,
        Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH] kernel/printk/index.c: fix memory leak with using
 debugfs_lookup()
In-Reply-To: <20230202151411.2308576-1-gregkh@linuxfoundation.org>
References: <20230202151411.2308576-1-gregkh@linuxfoundation.org>
Date:   Fri, 03 Feb 2023 10:17:10 +0106
Message-ID: <87cz6r5d1t.fsf@jogness.linutronix.de>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

On 2023-02-02, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
> When calling debugfs_lookup() the result must have dput() called on it,
> otherwise the memory will leak over time.  To make things simpler, just
> call debugfs_lookup_and_remove() instead which handles all of the logic
> at once.
>
> Cc: Chris Down <chris@chrisdown.name>
> Cc: Petr Mladek <pmladek@suse.com>
> Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: John Ogness <john.ogness@linutronix.de>
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: John Ogness <john.ogness@linutronix.de>