diff options
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 58fa8cc0262b..754595ee11b6 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -103,7 +103,7 @@ struct flush_queue { struct flush_queue_entry *entries; }; -DEFINE_PER_CPU(struct flush_queue, flush_queue); +static DEFINE_PER_CPU(struct flush_queue, flush_queue); static atomic_t queue_timer_on; static struct timer_list queue_timer; @@ -1361,7 +1361,8 @@ static u64 *alloc_pte(struct protection_domain *domain, __npte = PM_LEVEL_PDE(level, virt_to_phys(page)); - if (cmpxchg64(pte, __pte, __npte)) { + /* pte could have been changed somewhere. */ + if (cmpxchg64(pte, __pte, __npte) != __pte) { free_page((unsigned long)page); continue; } @@ -1741,6 +1742,9 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom) free_pagetable(&dom->domain); + if (dom->domain.id) + domain_id_free(dom->domain.id); + kfree(dom); } @@ -3649,7 +3653,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) table = irq_lookup_table[devid]; if (table) - goto out; + goto out_unlock; alias = amd_iommu_alias_table[devid]; table = irq_lookup_table[alias]; @@ -3663,7 +3667,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) /* Nothing there yet, allocate new irq remapping table */ table = kzalloc(sizeof(*table), GFP_ATOMIC); if (!table) - goto out; + goto out_unlock; /* Initialize table spin-lock */ spin_lock_init(&table->lock); @@ -3676,7 +3680,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) if (!table->table) { kfree(table); table = NULL; - goto out; + goto out_unlock; } if (!AMD_IOMMU_GUEST_IR_GA(amd_iommu_guest_ir)) @@ -4153,6 +4157,7 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq, } if (index < 0) { pr_warn("Failed to allocate IRTE\n"); + ret = index; goto out_free_parent; } |