diff options
| -rw-r--r-- | drivers/iommu/iommufd/eventq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/iommufd/eventq.c b/drivers/iommu/iommufd/eventq.c index f55d173c59f6..613024ca8f1f 100644 --- a/drivers/iommu/iommufd/eventq.c +++ b/drivers/iommu/iommufd/eventq.c @@ -142,6 +142,9 @@ static ssize_t iommufd_fault_fops_read(struct file *filep, char __user *buf, if (done >= count || group->fault_count * fault_size > count - done) { iommufd_fault_deliver_restore(fault, group); + /* Read count doesn't fit the first fault group */ + if (done == 0) + rc = -EINVAL; break; } |