diff options
Diffstat (limited to 'drivers/iommu/iommu-debug.c')
| -rw-r--r-- | drivers/iommu/iommu-debug.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/iommu/iommu-debug.c b/drivers/iommu/iommu-debug.c index 78c566130717..3ce9b7c39291 100644 --- a/drivers/iommu/iommu-debug.c +++ b/drivers/iommu/iommu-debug.c @@ -94,8 +94,14 @@ static ssize_t iommu_debug_attachment_trigger_fault_write( loff_t *offset) { struct iommu_debug_attachment *attach = file->private_data; + unsigned long flags; - iommu_trigger_fault(attach->domain, 0); + if (kstrtoul_from_user(ubuf, count, 0, &flags)) { + pr_err("Invalid flags format\n"); + return -EFAULT; + } + + iommu_trigger_fault(attach->domain, flags); return count; } |