Re: [PATCH v7 24/49] media: pci: dt3155: Stop direct calls to queue num_buffers field

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On 14/09/2023 15:32, Benjamin Gaignard wrote:
> Use vb2_get_num_buffers() to avoid using queue num_buffer field directly.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> ---
>  drivers/media/pci/dt3155/dt3155.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/pci/dt3155/dt3155.c b/drivers/media/pci/dt3155/dt3155.c
> index 548156b199cc..d3abb0e093c1 100644
> --- a/drivers/media/pci/dt3155/dt3155.c
> +++ b/drivers/media/pci/dt3155/dt3155.c
> @@ -126,10 +126,11 @@ dt3155_queue_setup(struct vb2_queue *vq,
>  
>  {
>  	struct dt3155_priv *pd = vb2_get_drv_priv(vq);
> +	unsigned int q_num_bufs = vb2_get_num_buffers(vq);
>  	unsigned size = pd->width * pd->height;
>  
> -	if (vq->num_buffers + *nbuffers < 2)
> -		*nbuffers = 2 - vq->num_buffers;
> +	if (q_num_bufs + *nbuffers < 2)
> +		*nbuffers = 2 - q_num_bufs;

Just drop this, min_buffers_needed is already set to 0.

Regards,

	Hans

>  	if (*num_planes)
>  		return sizes[0] < size ? -EINVAL : 0;
>  	*num_planes = 1;




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