linux-kernel - Re: [PATCH 08/25] media: iris: Update vbuf flags before v4l2_m2m_buf

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Message-ID: <d641e3e3-a66b-9897-30b6-67766571d8f9@quicinc.com>
Date: Wed, 16 Jul 2025 12:26:47 +0530
From: Vikash Garodia <quic_vgarodia@...cinc.com>
To: Dikshita Agarwal <quic_dikshita@...cinc.com>,
        Abhinav Kumar
	<abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil
	<hverkuil@...all.nl>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        "Vedang
 Nagar" <quic_vnagar@...cinc.com>
CC: <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 08/25] media: iris: Update vbuf flags before
 v4l2_m2m_buf_done



On 7/4/2025 1:23 PM, Dikshita Agarwal wrote:
> Update the vbuf flags appropriately in error cases before calling
> v4l2_m2m_buf_done(). Previously, the flag update was skippied in error
> scenario, which could result in incorrect state reporting for buffers.
> 
> Fixes: 17f2a485ca67 ("media: iris: implement vb2 ops for buf_queue and firmware response")
> Signed-off-by: Dikshita Agarwal <quic_dikshita@...cinc.com>
> ---
>  drivers/media/platform/qcom/iris/iris_buffer.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/iris/iris_buffer.c b/drivers/media/platform/qcom/iris/iris_buffer.c
> index 320ebfb833331294ba5ddda8e9cd243c80633408..3ab533310b2dfece11ea31b30d29ecb32e0c3f87 100644
> --- a/drivers/media/platform/qcom/iris/iris_buffer.c
> +++ b/drivers/media/platform/qcom/iris/iris_buffer.c
> @@ -651,6 +651,8 @@ int iris_vb2_buffer_done(struct iris_inst *inst, struct iris_buffer *buf)
>  
>  	vb2 = &vbuf->vb2_buf;
>  
> +	vbuf->flags |= buf->flags;
> +
>  	if (buf->flags & V4L2_BUF_FLAG_ERROR) {
>  		state = VB2_BUF_STATE_ERROR;
>  		vb2_set_plane_payload(vb2, 0, 0);
> @@ -659,8 +661,6 @@ int iris_vb2_buffer_done(struct iris_inst *inst, struct iris_buffer *buf)
>  		return 0;
>  	}
>  
> -	vbuf->flags |= buf->flags;
> -
>  	if (V4L2_TYPE_IS_CAPTURE(type)) {
>  		vb2_set_plane_payload(vb2, 0, buf->data_size);
>  		vbuf->sequence = inst->sequence_cap++;
> 

Reviewed-by: Vikash Garodia <quic_vgarodia@...cinc.com>