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Subject: media: i2c: video-i2c: Stop direct calls to queue num_buffers field
Author: Benjamin Gaignard <benjamin.gaign...@collabora.com>
Date: Thu Nov 9 17:34:42 2023 +0100
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.
Fix the number of buffers computation at the same time.
Signed-off-by: Benjamin Gaignard <benjamin.gaign...@collabora.com>
CC: Matt Ranostay <matt.ranos...@konsulko.com>
Reviewed-by: Andrzej Pietrasiewicz <andrze...@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mche...@kernel.org>
drivers/media/i2c/video-i2c.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/i2c/video-i2c.c b/drivers/media/i2c/video-i2c.c
index 178bd06cc2ed..ebf2ac98a068 100644
--- a/drivers/media/i2c/video-i2c.c
+++ b/drivers/media/i2c/video-i2c.c
@@ -405,9 +405,10 @@ static int queue_setup(struct vb2_queue *vq,
{
struct video_i2c_data *data = vb2_get_drv_priv(vq);
unsigned int size = data->chip->buffer_size;
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);
- if (vq->num_buffers + *nbuffers < 2)
- *nbuffers = 2;
+ if (q_num_bufs + *nbuffers < 2)
+ *nbuffers = 2 - q_num_bufs;
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
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