From: Peng Wu <wupeng58@huawei.com>
Date: Thu, 28 Apr 2022 23:03:56 +0000 (+0200)
Subject: ARM: versatile: Add missing of_node_put in dcscb_init
X-Git-Tag: v4.19.247~240
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a0fc05cd17617e63fc13ad0c01f3f0afd890d8ec;p=thirdparty%2Fkernel%2Fstable.git

ARM: versatile: Add missing of_node_put in dcscb_init

[ Upstream commit 23b44f9c649bbef10b45fa33080cd8b4166800ae ]

The device_node pointer is returned by of_find_compatible_node
with refcount incremented. We should use of_node_put() to avoid
the refcount leak.

Signed-off-by: Peng Wu <wupeng58@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220428230356.69418-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/arm/mach-vexpress/dcscb.c b/arch/arm/mach-vexpress/dcscb.c
index ee2a0faafaa19..aaade91f65512 100644
--- a/arch/arm/mach-vexpress/dcscb.c
+++ b/arch/arm/mach-vexpress/dcscb.c
@@ -146,6 +146,7 @@ static int __init dcscb_init(void)
 	if (!node)
 		return -ENODEV;
 	dcscb_base = of_iomap(node, 0);
+	of_node_put(node);
 	if (!dcscb_base)
 		return -EADDRNOTAVAIL;
 	cfg = readl_relaxed(dcscb_base + DCS_CFG_R);