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References: <20190308013222.12524-1-philmd@redhat.com>
	<20190308013222.12524-13-philmd@redhat.com>
From: Thomas Huth <thuth@redhat.com>
Message-ID: <2c1d16fc-fffa-1315-8a05-6dd080d2913d@redhat.com>
Date: Fri, 8 Mar 2019 08:02:12 +0100
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Subject: Re: [Qemu-devel] [PATCH v2 12/18] hw/nvram/fw_cfg: Keep reference
 of file_data in FWCfgState
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To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= <philmd@redhat.com>, Laszlo Ersek <lersek@redhat.com>, Gerd Hoffmann <kraxel@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, qemu-devel@nongnu.org
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Eduardo Habkost <ehabkost@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <rth@twiddle.net>, Artyom Tarasenko <atar4qemu@gmail.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, David Gibson <david@gibson.dropbear.id.au>, Igor Mammedov <imammedo@redhat.com>, Eric Blake <eblake@redhat.com>, qemu-ppc@nongnu.org, qemu-arm@nongnu.org, Markus Armbruster <armbru@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, "Daniel P . Berrange" <berrange@redhat.com>

On 08/03/2019 02.32, Philippe Mathieu-Daud=C3=A9 wrote:
> The 'file_data' is allocated by read_splashfile() (introduced in
> commit 3d3b8303c6f8).  It is then used by fw_cfg_add_file(). Due
> to the contract interface of fw_cfg_add_file(), it has to be valid
> for the lifetime of the FwCfg object.
>=20
> Keep a reference of 'file_data' in FWCfgState to be able to
> free this memory in fw_cfg_common_unrealize().
> We can now remove the res_free() from the main() loop.
> The global boot_splash_filedata is now unused, remove it.
>=20
> Signed-off-by: Philippe Mathieu-Daud=C3=A9 <philmd@redhat.com>
> ---
>  hw/nvram/fw_cfg.c         | 10 ++++++----
>  include/hw/nvram/fw_cfg.h |  1 +
>  include/sysemu/sysemu.h   |  1 -
>  vl.c                      |  9 ---------
>  4 files changed, 7 insertions(+), 14 deletions(-)

Reviewed-by: Thomas Huth <thuth@redhat.com>