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media: touchscreen: sur40: Stop direct calls to queue num_buffers field

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Use vb2_get_num_buffers() to avoid using queue num_buffers field directly.
This allows us to change how the number of buffers is computed in the
future.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Benjamin Gaignard 2023-11-09 17:34:49 +01:00 committed by Mauro Carvalho Chehab
parent 8858adab50
commit 1167852857
1 changed files with 3 additions and 2 deletions
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5
drivers/input/touchscreen/sur40.c
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@ -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;
if (*nplanes)
return sizes[0] < sur40->pix_fmt.sizeimage ? -EINVAL : 0;