diff options
Diffstat (limited to 'drivers/iommu/dmar.c')
| -rw-r--r-- | drivers/iommu/dmar.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index a88576d50740..36e3f430d265 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -74,6 +74,8 @@ static unsigned long dmar_seq_ids[BITS_TO_LONGS(DMAR_UNITS_SUPPORTED)]; static int alloc_iommu(struct dmar_drhd_unit *drhd); static void free_iommu(struct intel_iommu *iommu); +extern const struct iommu_ops intel_iommu_ops; + static void dmar_register_drhd_unit(struct dmar_drhd_unit *drhd) { /* @@ -903,8 +905,10 @@ int __init detect_intel_iommu(void) x86_init.iommu.iommu_init = intel_iommu_init; #endif - acpi_put_table(dmar_tbl); - dmar_tbl = NULL; + if (dmar_tbl) { + acpi_put_table(dmar_tbl); + dmar_tbl = NULL; + } up_write(&dmar_global_lock); return ret ? 1 : -ENODEV; @@ -1076,14 +1080,17 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd) raw_spin_lock_init(&iommu->register_lock); if (intel_iommu_enabled) { - iommu->iommu_dev = iommu_device_create(NULL, iommu, - intel_iommu_groups, - "%s", iommu->name); + err = iommu_device_sysfs_add(&iommu->iommu, NULL, + intel_iommu_groups, + "%s", iommu->name); + if (err) + goto err_unmap; + + iommu_device_set_ops(&iommu->iommu, &intel_iommu_ops); - if (IS_ERR(iommu->iommu_dev)) { - err = PTR_ERR(iommu->iommu_dev); + err = iommu_device_register(&iommu->iommu); + if (err) goto err_unmap; - } } drhd->iommu = iommu; @@ -1101,7 +1108,10 @@ error: static void free_iommu(struct intel_iommu *iommu) { - iommu_device_destroy(iommu->iommu_dev); + if (intel_iommu_enabled) { + iommu_device_unregister(&iommu->iommu); + iommu_device_sysfs_remove(&iommu->iommu); + } if (iommu->irq) { if (iommu->pr_irq) { |