Merge branches 'x86/amd', 'x86/vt-d', 'arm/exynos', 'arm/mediatek', 'arm/msm', 'arm...

[platform/kernel/linux-rpi.git] / drivers / iommu / intel-iommu.c

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 323dac9..9d2938e 100644 (file)
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1672,7 +1672,7 @@ static int iommu_init_domains(struct intel_iommu *iommu)
                return -ENOMEM;
        }
 
-       size = ((ndomains >> 8) + 1) * sizeof(struct dmar_domain **);
+       size = (ALIGN(ndomains, 256) >> 8) * sizeof(struct dmar_domain **);
        iommu->domains = kzalloc(size, GFP_KERNEL);
 
        if (iommu->domains) {
@@ -1737,7 +1737,7 @@ static void disable_dmar_iommu(struct intel_iommu *iommu)
 static void free_dmar_iommu(struct intel_iommu *iommu)
 {
        if ((iommu->domains) && (iommu->domain_ids)) {
-               int elems = (cap_ndoms(iommu->cap) >> 8) + 1;
+               int elems = ALIGN(cap_ndoms(iommu->cap), 256) >> 8;
                int i;
 
                for (i = 0; i < elems; i++)
@@ -2076,7 +2076,7 @@ out_unlock:
        spin_unlock(&iommu->lock);
        spin_unlock_irqrestore(&device_domain_lock, flags);
 
-       return 0;
+       return ret;
 }
 
 struct domain_context_mapping_data {