Re: [PATCH v11 39/56] touchscreen: sur40: Stop direct calls to queue num_buffers field

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On 12/10/2023 13:46, Benjamin Gaignard wrote:
> Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> CC: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
> CC: Henrik Rydberg <rydberg@xxxxxxxxxxx>
> ---
>  drivers/input/touchscreen/sur40.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
> index 8ddb3f7d307a..e7d2a52169a0 100644
> --- a/drivers/input/touchscreen/sur40.c
> +++ b/drivers/input/touchscreen/sur40.c
> @@ -847,9 +847,10 @@ static int sur40_queue_setup(struct vb2_queue *q,
>  		       unsigned int sizes[], struct device *alloc_devs[])
>  {
>  	struct sur40_state *sur40 = vb2_get_drv_priv(q);
> +	unsigned int q_num_bufs = vb2_get_num_buffers(q);
>  
> -	if (q->num_buffers + *nbuffers < 3)
> -		*nbuffers = 3 - q->num_buffers;
> +	if (q_num_bufs + *nbuffers < 3)
> +		*nbuffers = 3 - q_num_bufs;

This can just be dropped since this driver sets min_buffers_needed to 3.

Regards,

	Hans

>  
>  	if (*nplanes)
>  		return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;




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