From: Miaoqian Lin linmq006@gmail.com
stable inclusion from stable-4.19.249 commit b634af84bc1edece4e63317b0ad95618dd3a8693 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5I4FP CVE: NA
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[ Upstream commit f4b98e314888cc51486421bcf6d52852452ea48b ]
of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: 82b0a434b436 ("irqchip/gic/realview: Support more RealView DCC variants") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220601080930.31005-2-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yongqiang Liu liuyongqiang13@huawei.com --- drivers/irqchip/irq-gic-realview.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/irqchip/irq-gic-realview.c b/drivers/irqchip/irq-gic-realview.c index b4c1924f0255..38fab02ffe9d 100644 --- a/drivers/irqchip/irq-gic-realview.c +++ b/drivers/irqchip/irq-gic-realview.c @@ -57,6 +57,7 @@ realview_gic_of_init(struct device_node *node, struct device_node *parent)
/* The PB11MPCore GIC needs to be configured in the syscon */ map = syscon_node_to_regmap(np); + of_node_put(np); if (!IS_ERR(map)) { /* new irq mode with no DCC */ regmap_write(map, REALVIEW_SYS_LOCK_OFFSET,