pci: intr-remap: Free irte memory if SPARSE_IRQ=y
With SPARSE_IRQ=y the irte descriptors are dynamically allocated, but not freed in free_irte(). That was ok as long as the sparse irq core was not freeing irq descriptors on destroy_irq(). Now we leak the irte descriptor. Free it in free_irte(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
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@ -95,6 +95,15 @@ static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
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return desc->irq_2_iommu;
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}
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static void irq_2_iommu_free(unsigned int irq)
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{
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struct irq_data *d = irq_get_irq_data(irq);
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struct irq_2_iommu *p = d->irq_2_iommu;
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d->irq_2_iommu = NULL;
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kfree(p);
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}
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#else /* !CONFIG_SPARSE_IRQ */
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static struct irq_2_iommu irq_2_iommuX[NR_IRQS];
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@ -110,6 +119,9 @@ static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
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{
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return irq_2_iommu(irq);
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}
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static void irq_2_iommu_free(unsigned int irq) { }
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#endif
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static DEFINE_SPINLOCK(irq_2_ir_lock);
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@ -440,6 +452,8 @@ int free_irte(int irq)
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spin_unlock_irqrestore(&irq_2_ir_lock, flags);
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irq_2_iommu_free(irq);
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return rc;
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}
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