[PATCH v5 4/9] irqchip/imx-irqsteer: Dispose of parent IRQ mappings in remove()

[Zhipeng . wang_1]

From: Zhipeng Wang <zhipeng.wang_1@xxxxxxx>

probe() maps the parent output interrupts with irq_of_parse_and_map(),
but remove() only unchains the handlers and never disposes of those
mappings, leaking them on unbind. The child mappings handed out by the
domain are freed by their consumers and, together with the domain, are
now torn down by devres, so remove() only has to dispose of the parent
mappings it created itself.

Dispose of the parent mappings alongside the chained-handler teardown.

Fixes: 0136afa08967 ("irqchip: Add driver for imx-irqsteer controller")
Signed-off-by: Zhipeng Wang <zhipeng.wang_1@xxxxxxx>
Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
---
 drivers/irqchip/irq-imx-irqsteer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-imx-irqsteer.c b/drivers/irqchip/irq-imx-irqsteer.c
index 571324de8bd1..071ab1ac1fe9 100644
--- a/drivers/irqchip/irq-imx-irqsteer.c
+++ b/drivers/irqchip/irq-imx-irqsteer.c
@@ -287,6 +287,7 @@ static void imx_irqsteer_remove(struct platform_device *pdev)
 
 		irq_set_chained_handler_and_data(irqsteer_data->irq[i],
 						 NULL, NULL);
+		irq_dispose_mapping(irqsteer_data->irq[i]);
 	}
 
 	clk_disable_unprepare(irqsteer_data->ipg_clk);
-- 
2.34.1