diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 83c8e617a2c5..cac3dce11168 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -503,6 +503,9 @@ static void iommu_deinit_device(struct device *dev) dev->iommu_group = NULL; module_put(ops->owner); dev_iommu_free(dev); +#ifdef CONFIG_IOMMU_DMA + dev->dma_iommu = false; +#endif } DEFINE_MUTEX(iommu_probe_device_lock); @@ -3112,6 +3115,11 @@ int iommu_device_use_default_domain(struct device *dev) return 0; mutex_lock(&group->mutex); + /* We may race against bus_iommu_probe() finalising groups here */ + if (!group->default_domain) { + ret = -EPROBE_DEFER; + goto unlock_out; + } if (group->owner_cnt) { if (group->domain != group->default_domain || group->owner || !xa_empty(&group->pasid_array)) { |