[PATCH 13/16] irqchip/realtek-rtl: dispose parent mapping on domain failure

[Haofeng Li]

From: Haofeng Li <lihaofeng@xxxxxxxxxx>

If irq_domain_create_linear() fails after mapping the parent interrupt,
the parent IRQ mapping remains allocated.

Dispose the parent mapping before returning the error.

Fixes: 9070f1ce31c5 ("irqchip/realtek-rtl: use parent interrupts")
Signed-off-by: Haofeng Li <lihaofeng@xxxxxxxxxx>
---
 drivers/irqchip/irq-realtek-rtl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-realtek-rtl.c b/drivers/irqchip/irq-realtek-rtl.c
index 1f1dfa6e3d84..c20559591074 100644
--- a/drivers/irqchip/irq-realtek-rtl.c
+++ b/drivers/irqchip/irq-realtek-rtl.c
@@ -207,6 +207,7 @@ static int __init realtek_rtl_of_init(struct device_node *node, struct device_no
 
 	domain = irq_domain_create_linear(of_fwnode_handle(node), RTL_ICTL_NUM_INPUTS, &irq_domain_ops, NULL);
 	if (!domain) {
+		irq_dispose_mapping(parent_irq);
 		realtek_rtl_unmap_bases();
 		return -ENOMEM;
 	}
-- 
2.25.1