[PATCH v4 3/6] irqchip/gic-v3-its: Fix leak in its_vpe_irq_domain_alloc()

[Kemeng Shi]

When its_irq_gic_domain_alloc() fails, the following
its_vpe_irq_domain_free() skips calling its_vep_teardown() for the
corresponding irq. Call its_vpe_teardown() when its_irq_gic_domain_alloc()
is failedto avoid the leak issue.

Fixes: 7d75bbb4bc1ad ("irqchip/gic-v3-its: Add VPE irq domain allocation/teardown")
Signed-off-by: Kemeng Shi <shikemeng at huaweicloud.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 3e4edcb64065..8968bedefdba 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -4666,8 +4666,10 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
 			break;
 		err = its_irq_gic_domain_alloc(domain, virq + i,
 					       vm->vpes[i]->vpe_db_lpi);
-		if (err)
+		if (err) {
+			its_vpe_teardown(vm->vpes[i]);
 			break;
+		}
 		irq_domain_set_hwirq_and_chip(domain, virq + i, i,
 					      irqchip, vm->vpes[i]);
 		set_bit(i, bitmap);
-- 
2.36.1