linux-kernel - [PATCH 5.4 173/255] powerpc/powernv: add missing of_node_put() in opal_export

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Message-Id: <20221024113008.547706982@linuxfoundation.org>
Date:   Mon, 24 Oct 2022 13:31:23 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Zheng Yongjun <zhengyongjun3@...wei.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 173/255] powerpc/powernv: add missing of_node_put() in opal_export_attrs()

From: Zheng Yongjun <zhengyongjun3@...wei.com>

[ Upstream commit 71a92e99c47900cc164620948b3863382cec4f1a ]

After using 'np' returned by of_find_node_by_path(), of_node_put()
need be called to decrease the refcount.

Fixes: 11fe909d2362 ("powerpc/powernv: Add OPAL exports attributes to sysfs")
Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
Link: https://lore.kernel.org/r/20220906141703.118192-1-zhengyongjun3@huawei.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/powerpc/platforms/powernv/opal.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 38e90270280b..c3f968429161 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -776,6 +776,7 @@ static void opal_export_attrs(void)
 	kobj = kobject_create_and_add("exports", opal_kobj);
 	if (!kobj) {
 		pr_warn("kobject_create_and_add() of exports failed\n");
+		of_node_put(np);
 		return;
 	}
 
-- 
2.35.1