linux-kernel - [PATCH] media: media videobuf2: Stop direct calls to queue num

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Date: Mon, 15 Jan 2024 18:08:26 +0100
From: Benjamin Gaignard <benjamin.gaignard@...labora.com>
To: tfiga@...omium.org,
	m.szyprowski@...sung.com,
	mchehab@...nel.org,
	hverkuil-cisco@...all.nl
Cc: linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel@...labora.com,
	Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH] media: media videobuf2: Stop direct calls to queue num_buffers field

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.

Fixes: c838530d230b ("media: media videobuf2: Be more flexible on the number of queue stored buffers")
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
 drivers/media/common/videobuf2/videobuf2-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 41a832dd1426..b6bf8f232f48 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -989,7 +989,7 @@ int vb2_core_create_bufs(struct vb2_queue *q, enum vb2_memory memory,
 	bool no_previous_buffers = !q_num_bufs;
 	int ret = 0;
 
-	if (q->num_buffers == q->max_num_buffers) {
+	if (q_num_bufs == q->max_num_buffers) {
 		dprintk(q, 1, "maximum number of buffers already allocated\n");
 		return -ENOBUFS;
 	}
-- 
2.40.1