From: Zenghui Yu yuzenghui@huawei.com
commit edfc23f6f9fdbd7825d50ac1f380243cde19b679 upstream.
Using irq_domain_free_irqs_common() on the irqdomain free path will leave the MSI descriptor unfreed when platform devices get removed. Properly free it by MSI domain free function.
Fixes: 9650c60ebfec0 ("irqchip/mbigen: Create irq domain for each mbigen device") Signed-off-by: Zenghui Yu yuzenghui@huawei.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20200408114352.1604-1-yuzenghui@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/irqchip/irq-mbigen.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c index 4ecffa1..7ea3265 100644 --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -231,10 +231,16 @@ static int mbigen_irq_domain_alloc(struct irq_domain *domain, return 0; }
+static void mbigen_irq_domain_free(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs) +{ + platform_msi_domain_free(domain, virq, nr_irqs); +} + static const struct irq_domain_ops mbigen_domain_ops = { .translate = mbigen_domain_translate, .alloc = mbigen_irq_domain_alloc, - .free = irq_domain_free_irqs_common, + .free = mbigen_irq_domain_free, };
static int mbigen_of_create_domain(struct platform_device *pdev,