powerpc/powernv: add missing of_node_put() in opal_export_attrs()

[ 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@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220906141703.118192-1-zhengyongjun3@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index e9d18519e650bb1a13dad68e9fefecea0f440fb6..5178ec6f3715cf5944d45fe4fb13991d126e9f6b 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -892,6 +892,7 @@ 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;
        }