[PATCH -next] powerpc/powernv: add missing of_node_put() in opal_export_attrs()

[Zheng Yongjun]

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 at huawei.com>
---
 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 55a8fbfdb5b2..3510b55b36f8 100644
--- 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;
 	}

--
2.17.1