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Message-ID: <a4c47b282d9e3bc5c2891ac1b9cafb9c9970975c.camel@collabora.com>
Subject: Re: [PATCH] Fix memory leaks in wave5_vpu_open_enc() and
 wave5_vpu_open_dec()
From:   Nicolas Dufresne <nicolas.dufresne@collabora.com>
To:     Zeng Chi <zengchi@kylinos.cn>, nas.chung@chipsnmedia.com,
        jackson.lee@chipsnmedia.com, mchehab@kernel.org,
        sebastian.fricke@collabora.com, hverkuil-cisco@xs4all.nl,
        bob.beckett@collabora.com
Cc:     linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Date:   Mon, 04 Dec 2023 08:55:46 -0500
In-Reply-To: <20231204091649.3418987-1-zengchi@kylinos.cn>
References: <20231204091649.3418987-1-zengchi@kylinos.cn>
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Hi,

Le lundi 04 d=C3=A9cembre 2023 =C3=A0 17:16 +0800, Zeng Chi a =C3=A9crit=C2=
=A0:
> This patch fixes memory leaks on error escapes in wave5_vpu_open_enc()
> and wave5_vpu_open_dec().

Please avoid sending twice the same patch. This is still a NAK.

regards,
Nicolas

>=20
> Fixes: 9707a6254a8a ("media: chips-media: wave5: Add the v4l2 layer")
> Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
> ---
>  drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c | 5 +++--
>  drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c | 5 +++--
>  2 files changed, 6 insertions(+), 4 deletions(-)
>=20
> diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c b/d=
rivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> index 8b1417ece96e..b0a045346bb7 100644
> --- a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
> @@ -1802,9 +1802,10 @@ static int wave5_vpu_open_dec(struct file *filp)
>  	spin_lock_init(&inst->state_spinlock);
> =20
>  	inst->codec_info =3D kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
> -	if (!inst->codec_info)
> +	if (!inst->codec_info) {
> +		kfree(inst);
>  		return -ENOMEM;
> -
> +	}
>  	v4l2_fh_init(&inst->v4l2_fh, vdev);
>  	filp->private_data =3D &inst->v4l2_fh;
>  	v4l2_fh_add(&inst->v4l2_fh);
> diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c b/d=
rivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> index f29cfa3af94a..bc94de9ea546 100644
> --- a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> +++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
> @@ -1546,9 +1546,10 @@ static int wave5_vpu_open_enc(struct file *filp)
>  	inst->ops =3D &wave5_vpu_enc_inst_ops;
> =20
>  	inst->codec_info =3D kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
> -	if (!inst->codec_info)
> +	if (!inst->codec_info) {
> +		kfree(inst);
>  		return -ENOMEM;
> -
> +	}
>  	v4l2_fh_init(&inst->v4l2_fh, vdev);
>  	filp->private_data =3D &inst->v4l2_fh;
>  	v4l2_fh_add(&inst->v4l2_fh);