linux-kernel - [PATCH] soc: imx: gpc: fix reference count leak in imx_gpc

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Message-Id: <20251028031623.43284-1-linmq006@gmail.com>
Date: Tue, 28 Oct 2025 11:16:20 +0800
From: Miaoqian Lin <linmq006@...il.com>
To: Ulf Hansson <ulf.hansson@...aro.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	"Rob Herring (Arm)" <robh@...nel.org>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Lucas Stach <l.stach@...gutronix.de>,
	linux-pm@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: linmq006@...il.com,
	stable@...r.kernel.org
Subject: [PATCH] soc: imx: gpc: fix reference count leak in imx_gpc_remove

of_get_child_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver")
Cc: stable@...r.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 drivers/pmdomain/imx/gpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pmdomain/imx/gpc.c b/drivers/pmdomain/imx/gpc.c
index 33991f3c6b55..a34b260274f7 100644
--- a/drivers/pmdomain/imx/gpc.c
+++ b/drivers/pmdomain/imx/gpc.c
@@ -536,6 +536,8 @@ static void imx_gpc_remove(struct platform_device *pdev)
 			return;
 		}
 	}
+
+	of_node_put(pgc_node);
 }
 
 static struct platform_driver imx_gpc_driver = {
-- 
2.39.5 (Apple Git-154)