[PATCH] arch: arm: mach-keystone: Add missing of_node_put() in pm_domain.c

[heliang]

In keystone_pm_runtime_init(), of_find_matching_node() will return a
node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: heliang <windhl at 126.com>
---
 arch/arm/mach-keystone/pm_domain.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-keystone/pm_domain.c b/arch/arm/mach-keystone/pm_domain.c
index 5eea01cbecf0..50a08721a8d8 100644
--- a/arch/arm/mach-keystone/pm_domain.c
+++ b/arch/arm/mach-keystone/pm_domain.c
@@ -44,6 +44,8 @@ int __init keystone_pm_runtime_init(void)
 	if (!np)
 		return 0;
 
+	of_node_put(np);
+
 	pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier);
 
 	return 0;
-- 
2.25.1