mips: lantiq: xway: Fix refcount leak bug in sysctrl

In ltq_soc_init(), 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@126.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 084f6ca..d444a1b 100644 (file)
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -441,6 +441,10 @@ void __init ltq_soc_init(void)
                        of_address_to_resource(np_ebu, 0, &res_ebu))
                panic("Failed to get core resources");
 
+       of_node_put(np_pmu);
+       of_node_put(np_cgu);
+       of_node_put(np_ebu);
+
        if (!request_mem_region(res_pmu.start, resource_size(&res_pmu),
                                res_pmu.name) ||
                !request_mem_region(res_cgu.start, resource_size(&res_cgu),