linux-kernel - [PATCH v2 1/2] media: nuvoton: Fix reference handling of ece

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Message-Id: <20250224-nuvoton-v2-1-8faaa606be01@chromium.org>
Date: Mon, 24 Feb 2025 07:03:54 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Joseph Liu <kwliu@...oton.com>, Marvin Lin <kflin@...oton.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...all.nl>, Philipp Zabel <p.zabel@...gutronix.de>
Cc: Marvin Lin <milkfafa@...il.com>, linux-media@...r.kernel.org, 
 openbmc@...ts.ozlabs.org, linux-kernel@...r.kernel.org, 
 Ricardo Ribalda <ribalda@...omium.org>, stable@...r.kernel.org
Subject: [PATCH v2 1/2] media: nuvoton: Fix reference handling of ece_node

Make sure all the code paths call of_node_put().

Instead of manually calling of_node_put, use the __free macros/helpers.

Cc: stable@...r.kernel.org
Fixes: 46c15a4ff1f4 ("media: nuvoton: Add driver for NPCM video capture and encoding engine")
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/platform/nuvoton/npcm-video.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/nuvoton/npcm-video.c b/drivers/media/platform/nuvoton/npcm-video.c
index 024cd8ee1709..0547f119c38f 100644
--- a/drivers/media/platform/nuvoton/npcm-video.c
+++ b/drivers/media/platform/nuvoton/npcm-video.c
@@ -1648,8 +1648,8 @@ static int npcm_video_setup_video(struct npcm_video *video)
 
 static int npcm_video_ece_init(struct npcm_video *video)
 {
+	struct device_node *ece_node __free(device_node) = NULL;
 	struct device *dev = video->dev;
-	struct device_node *ece_node;
 	struct platform_device *ece_pdev;
 	void __iomem *regs;
 
@@ -1669,7 +1669,6 @@ static int npcm_video_ece_init(struct npcm_video *video)
 			dev_err(dev, "Failed to find ECE device\n");
 			return -ENODEV;
 		}
-		of_node_put(ece_node);
 
 		regs = devm_platform_ioremap_resource(ece_pdev, 0);
 		if (IS_ERR(regs)) {

-- 
2.48.1.601.g30ceb7b040-goog