[PATCH] powerpc: kernel: fix a refcount leak in format_show()

[Hangyu Hua]

node needs to be dropped when of_property_read_string fails. So an earlier call
to of_node_put is required here.

Signed-off-by: Hangyu Hua <hbh...@gmail.com>
---
 arch/powerpc/kernel/secvar-sysfs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/secvar-sysfs.c 
b/arch/powerpc/kernel/secvar-sysfs.c
index a0a78aba2083..cd0fa7028d86 100644
--- a/arch/powerpc/kernel/secvar-sysfs.c
+++ b/arch/powerpc/kernel/secvar-sysfs.c
@@ -30,13 +30,12 @@ static ssize_t format_show(struct kobject *kobj, struct 
kobj_attribute *attr,
                return -ENODEV;
 
        rc = of_property_read_string(node, "format", &format);
+       of_node_put(node);
        if (rc)
                return rc;
 
        rc = sprintf(buf, "%s\n", format);
 
-       of_node_put(node);
-
        return rc;
 }
 
-- 
2.25.1