diff options
Diffstat (limited to 'drivers/iommu/iommu-debug.c')
| -rw-r--r-- | drivers/iommu/iommu-debug.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/iommu/iommu-debug.c b/drivers/iommu/iommu-debug.c index 75fcde6e2c20..ef4d5c6bf49a 100644 --- a/drivers/iommu/iommu-debug.c +++ b/drivers/iommu/iommu-debug.c @@ -1667,10 +1667,14 @@ static ssize_t iommu_debug_atos_read(struct file *file, char __user *ubuf, memset(buf, 0, 100); phys = iommu_iova_to_phys_hard(ddev->domain, ddev->iova); - if (!phys) + if (!phys) { strlcpy(buf, "FAIL\n", 100); - else + phys = iommu_iova_to_phys(ddev->domain, ddev->iova); + dev_err(ddev->dev, "ATOS for %pa failed. Software walk returned: %pa\n", + &ddev->iova, &phys); + } else { snprintf(buf, 100, "%pa\n", &phys); + } buflen = strlen(buf); if (copy_to_user(ubuf, buf, buflen)) { |