linux-kernel - Re: [PATCH] media: mediatek: vcodec: Fix an error handling path in vdec_msg_queue

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Date:   Mon, 7 Aug 2023 12:52:05 +0200
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Xiaoyong Lu <xiaoyong.lu@...iatek.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] media: mediatek: vcodec: Fix an error handling path in
 vdec_msg_queue_init()

Hi Christophe,

This no longer applies after some major rework of the driver from Yunfei that
was merged to our media_stage tree.

Can you rebase this patch (if it is even still relevant)?

Thanks,

	Hans

On 17/07/2023 22:09, Christophe JAILLET wrote:
> All errors go to the error handling path, except this one. Be consistent
> and also branch to it.
> 
> Fixes: 2f5d0aef37c6 ("media: mediatek: vcodec: support stateless AV1 decoder")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
>  drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> index 04e6dc6cfa1d..c6cc2785e0e8 100644
> --- a/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> +++ b/drivers/media/platform/mediatek/vcodec/vdec_msg_queue.c
> @@ -338,14 +338,16 @@ int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue,
>  			err = mtk_vcodec_mem_alloc(ctx, &lat_buf->rd_mv_addr);
>  			if (err) {
>  				mtk_v4l2_err("failed to allocate rd_mv_addr buf[%d]", i);
> -				return -ENOMEM;
> +				err = -ENOMEM;
> +				goto mem_alloc_err;
>  			}
>  
>  			lat_buf->tile_addr.size = VDEC_LAT_TILE_SZ;
>  			err = mtk_vcodec_mem_alloc(ctx, &lat_buf->tile_addr);
>  			if (err) {
>  				mtk_v4l2_err("failed to allocate tile_addr buf[%d]", i);
> -				return -ENOMEM;
> +				err = -ENOMEM;
> +				goto mem_alloc_err;
>  			}
>  		}
>