4.17-stable review patch. If anyone has any objections, please let me know.
------------------ From: Marc Zyngier <marc.zyng...@arm.com> [ Upstream commit cbaf45a6be497c272e80500e4fd9bccdf20d5050 ] On failing to allocate the required SPIs, the actual number of interrupts should be freed and not its log2 value. Fixes: de337ee30142 ("irqchip/gic-v2m: Add PCI Multi-MSI support") Signed-off-by: Marc Zyngier <marc.zyng...@arm.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: Jason Cooper <ja...@lakedaemon.net> Cc: Alexandre Belloni <alexandre.bell...@bootlin.com> Cc: Yang Yingliang <yangyingli...@huawei.com> Cc: Sumit Garg <sumit.g...@linaro.org> Link: https://lkml.kernel.org/r/20180622095254.5906-4-marc.zyng...@arm.com Signed-off-by: Sasha Levin <alexander.le...@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/irqchip/irq-gic-v2m.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/irqchip/irq-gic-v2m.c +++ b/drivers/irqchip/irq-gic-v2m.c @@ -199,7 +199,7 @@ static int gicv2m_irq_domain_alloc(struc fail: irq_domain_free_irqs_parent(domain, virq, nr_irqs); - gicv2m_unalloc_msi(v2m, hwirq, get_count_order(nr_irqs)); + gicv2m_unalloc_msi(v2m, hwirq, nr_irqs); return err; }