From 7ddfb650c7ef7a33a5ef11c0fdf5b3d837a47dba Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Wed, 20 Aug 2008 17:22:51 -0700 Subject: sparseirq: fix intr-remap with dyn_array/nr_irqs changes] In irq_2_iommu_alloc() and set_irte_irq(), irq_to_desc or irq_2_iommu pointers may not be allocated. So use the routines which will allocate them if they are not already allocated. Signed-off-by: Suresh Siddha Signed-off-by: Ingo Molnar --- drivers/pci/intr_remapping.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c index 23372c811159..2dcf973890c4 100644 --- a/drivers/pci/intr_remapping.c +++ b/drivers/pci/intr_remapping.c @@ -76,9 +76,10 @@ static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq) struct irq_desc *desc; struct irq_2_iommu *irq_iommu; - desc = irq_to_desc(irq); - - BUG_ON(!desc); + /* + * alloc irq desc if not allocated already. + */ + desc = irq_to_desc_alloc(irq); irq_iommu = desc->irq_2_iommu; @@ -255,11 +256,8 @@ int set_irte_irq(int irq, struct intel_iommu *iommu, u16 index, u16 subhandle) struct irq_2_iommu *irq_iommu; spin_lock(&irq_2_ir_lock); - irq_iommu = valid_irq_2_iommu(irq); - if (!irq_iommu) { - spin_unlock(&irq_2_ir_lock); - return -1; - } + + irq_iommu = irq_2_iommu_alloc(irq); irq_iommu->iommu = iommu; irq_iommu->irte_index = index; -- cgit v1.2.3