linux-kernel - [PATCH v3 1/3] media: rkisp1: Properly handle result of rkisp1_params_init_vb2

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Message-Id: <20250523-supported-params-and-wdr-v3-1-7283b8536694@ideasonboard.com>
Date: Fri, 23 May 2025 17:14:30 +0200
From: Stefan Klug <stefan.klug@...asonboard.com>
To: Dafna Hirschfeld <dafna@...tmail.com>, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Heiko Stuebner <heiko@...ech.de>
Cc: linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Stefan Klug <stefan.klug@...asonboard.com>
Subject: [PATCH v3 1/3] media: rkisp1: Properly handle result of
 rkisp1_params_init_vb2_queue()

Properly handle the return of rkisp1_params_init_vb2_queue(). It is very
unlikely that this ever fails without code changes but should be handled
anyways.

While at it rename the error label for easier extension in the upcoming
patch.

Signed-off-by: Stefan Klug <stefan.klug@...asonboard.com>

---

Changes in v3:
- Moved these changes into its own patch
---
 drivers/media/platform/rockchip/rkisp1/rkisp1-params.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
index b28f4140c8a3..24a8de697f2b 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
@@ -2763,7 +2763,9 @@ int rkisp1_params_register(struct rkisp1_device *rkisp1)
 	vdev->queue = &node->buf_queue;
 	vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_META_OUTPUT;
 	vdev->vfl_dir = VFL_DIR_TX;
-	rkisp1_params_init_vb2_queue(vdev->queue, params);
+	ret = rkisp1_params_init_vb2_queue(vdev->queue, params);
+	if (ret)
+		goto err_media;
 
 	params->metafmt = &rkisp1_params_formats[RKISP1_PARAMS_FIXED];
 
@@ -2777,18 +2779,18 @@ int rkisp1_params_register(struct rkisp1_device *rkisp1)
 	node->pad.flags = MEDIA_PAD_FL_SOURCE;
 	ret = media_entity_pads_init(&vdev->entity, 1, &node->pad);
 	if (ret)
-		goto error;
+		goto err_media;
 
 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
 	if (ret) {
 		dev_err(rkisp1->dev,
 			"failed to register %s, ret=%d\n", vdev->name, ret);
-		goto error;
+		goto err_media;
 	}
 
 	return 0;
 
-error:
+err_media:
 	media_entity_cleanup(&vdev->entity);
 	mutex_destroy(&node->vlock);
 	return ret;

-- 
2.43.0