[PATCH] irqchip/ls-extirq: fix resource leak in ls_extirq_parse_map()

[jackysliu]

From: Siyang Liu <1972843537@xxxxxx>

The ls_extirq_parse_map function uses of_find_node_by_phandle() to obtain
interrupt parent nodes within a loop, but fails to release the reference
count on these nodes. This results in a kernel memory leak as the node
reference counts continuously increase.

Add of_node_put() calls to properly release the references when the nodes
are no longer needed

Signed-off-by: Siyang Liu <1972843537@xxxxxx>
---
 drivers/irqchip/irq-ls-extirq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-ls-extirq.c b/drivers/irqchip/irq-ls-extirq.c
index 50a7b38381b9..fb4e7b3a6e2f 100644
--- a/drivers/irqchip/irq-ls-extirq.c
+++ b/drivers/irqchip/irq-ls-extirq.c
@@ -164,6 +164,7 @@ ls_extirq_parse_map(struct ls_extirq_data *priv, struct device_node *node)
 		for (j = 0; j < intsize; ++j)
 			priv->map[hwirq].param[j] = be32_to_cpup(map++);
 		mapsize -= intsize;
+		of_node_put(ipar);
 	}
 	return 0;
 }
-- 
2.43.5