[PATCH v14 20/56] media: dvb-frontends: rtl2832: Stop direct calls to queue num_buffers field

Benjamin Gaignard
2023-10-31T16:34:55Z

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: Antti Palosaari <crope@iki.fi>
---
drivers/media/dvb-frontends/rtl2832_sdr.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c
index 02c619e51641..023db6e793f8 100644
--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
+++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
@@ -439,12 +439,13 @@ static int rtl2832_sdr_queue_setup(struct vb2_queue *vq,
{
struct rtl2832_sdr_dev *dev = vb2_get_drv_priv(vq);
struct platform_device *pdev = dev->pdev;
+ unsigned int q_num_bufs = vb2_get_num_buffers(vq);

dev_dbg(&pdev->dev, "nbuffers=%d\n", *nbuffers);

/* Need at least 8 buffers */
- if (vq->num_buffers + *nbuffers < 8)
- *nbuffers = 8 - vq->num_buffers;
+ if (q_num_bufs + *nbuffers < 8)
+ *nbuffers = 8 - q_num_bufs;
*nplanes = 1;
sizes[0] = PAGE_ALIGN(dev->buffersize);
dev_dbg(&pdev->dev, "nbuffers=%d sizes[0]=%d\n", *nbuffers, sizes[0]);
--
2.39.2