In map_prom_timers(), of_find_node_by_path() 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/sparc/kernel/irq_64.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index c8848bb681a1..84abfe584a08 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -909,12 +909,13 @@ static u64 prom_limit0, prom_limit1; static void map_prom_timers(void) { - struct device_node *dp; + struct device_node *dp, *tp; const unsigned int *addr; /* PROM timer node hangs out in the top level of device siblings... */ - dp = of_find_node_by_path("/"); - dp = dp->child; + tp = of_find_node_by_path("/"); + dp = tp->child; + of_node_put(tp); while (dp) { if (of_node_name_eq(dp, "counter-timer")) break; -- 2.25.1