[PATCH] arch: x86: kernel: Add missing of_node_put() in devicetree.c

[Liang He]

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

Signed-off-by: Liang He <windhl@xxxxxxx>
---
 arch/x86/kernel/devicetree.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 5cd51f25f446..6a386424ddf7 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -120,6 +120,9 @@ static void __init dtb_setup_hpet(void)
 	if (!dn)
 		return;
 	ret = of_address_to_resource(dn, 0, &r);
+	
+	of_node_put(dn);
+	
 	if (ret) {
 		WARN_ON(1);
 		return;
-- 
2.25.1