From 13856e22217fbf7c1200633716ff87ccb50fd89a Mon Sep 17 00:00:00 2001 From: Kemeng Shi Date: Tue, 23 Jun 2026 15:51:32 +0800 Subject: [PATCH] irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path When irq_domain_trim_hierarchy() fails in irq_domain_alloc_irqs_locked(), the error handling path fails to undo the hierarchy allocations. Add the missing cleanup. [ tglx: Massage change log ] Signed-off-by: Kemeng Shi Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260623075134.4432-2-shikemeng@huaweicloud.com --- kernel/irq/irqdomain.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index f15c9f1223bb..f76f516a2cc3 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -1658,7 +1658,7 @@ static int irq_domain_alloc_irqs_locked(struct irq_domain *domain, int irq_base, for (i = 0; i < nr_irqs; i++) { ret = irq_domain_trim_hierarchy(virq + i); if (ret) - goto out_free_irq_data; + goto out_free_irqs; } for (i = 0; i < nr_irqs; i++) @@ -1666,6 +1666,8 @@ static int irq_domain_alloc_irqs_locked(struct irq_domain *domain, int irq_base, return virq; +out_free_irqs: + irq_domain_free_irqs_hierarchy(domain, virq, nr_irqs); out_free_irq_data: irq_domain_free_irq_data(virq, nr_irqs); out_free_desc: