diff mbox series

[v13,26/56] media: i2c: video-i2c: Stop direct calls to queue num_buffers field

Message ID 20231019125222.21370-27-benjamin.gaignard@collabora.com (mailing list archive)
State New, archived
Headers show
Series Add DELETE_BUF ioctl | expand

Commit Message

Benjamin Gaignard Oct. 19, 2023, 12:51 p.m. UTC 
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>
CC: Matt Ranostay <matt.ranostay@konsulko.com>
---
 drivers/media/i2c/video-i2c.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

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;