linux-kernel - [PATCH v2 3/7] irqchip/gic-v2m: Fix SPI release on error path

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Date:   Fri, 22 Jun 2018 10:52:50 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>
Cc:     linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Sumit Garg <sumit.garg@...aro.org>
Subject: [PATCH v2 3/7] irqchip/gic-v2m: Fix SPI release on error path

On failing to allocate the required SPIs, we should free the actual
number of interrupts, and not its log2 value.

Fixes: de337ee30142 ("irqchip/gic-v2m: Add PCI Multi-MSI support")
Signed-off-by: Marc Zyngier <marc.zyngier@....com>
---
 drivers/irqchip/irq-gic-v2m.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index 0f52d44b3f69..f5fe0100f9ff 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -199,7 +199,7 @@ static int gicv2m_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 
 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;
 }
 
-- 
2.17.1