linux-kernel - [PATCH] ARM: imx: Fix refcount leak in imx_src

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Date:   Wed,  9 Mar 2022 10:29:25 +0000
From:   Miaoqian Lin <linmq006@...il.com>
To:     Russell King <linux@...linux.org.uk>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Anson Huang <b20788@...escale.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Miaoqian Lin <linmq006@...il.com>,
        Ranjani Vaidyanathan <ra5478@...escale.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: imx: Fix refcount leak in imx_src_init

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 9fbbe6890c88 ("arm/imx6q: add core drivers clock, gpc, mmdc and src")
Signed-off-by: Miaoqian Lin <linmq006@...il.com>
---
 arch/arm/mach-imx/src.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 59a8e8cc4469..f28bfb653a88 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -171,6 +171,7 @@ void __init imx_src_init(void)
 	if (!np)
 		return;
 	src_base = of_iomap(np, 0);
+	of_node_put(np);
 	WARN_ON(!src_base);
 
 	/*
-- 
2.17.1