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[v15,33/56] touchscreen: sur40: Stop direct calls to queue num_buffers field

Message ID 20231109163512.179524-34-benjamin.gaignard@collabora.com (mailing list archive)
State New, archived
Headers show
Series Add DELETE_BUF ioctl | expand

Commit Message

Benjamin Gaignard Nov. 9, 2023, 4:34 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>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/sur40.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
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Patch

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