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vfio/type1: Use the new helper to find vfio_group

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When attaching a new group to the container, let's use the new helper
vfio_iommu_find_iommu_group() to check if it's already attached. There
is no functional change.

Also take this chance to add a missing blank line.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Zenghui Yu 2020-10-22 20:24:17 +08:00 committed by Alex Williamson
parent 3cea11cd5e
commit 572f64c71e
1 changed files with 5 additions and 12 deletions
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17
drivers/vfio/vfio_iommu_type1.c
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@ -1993,6 +1993,7 @@ static void vfio_iommu_iova_insert_copy(struct vfio_iommu *iommu,
list_splice_tail(iova_copy, iova);
}
static int vfio_iommu_type1_attach_group(void *iommu_data,
struct iommu_group *iommu_group)
{
@ -2009,18 +2010,10 @@ static int vfio_iommu_type1_attach_group(void *iommu_data,
mutex_lock(&iommu->lock);
list_for_each_entry(d, &iommu->domain_list, next) {
if (find_iommu_group(d, iommu_group)) {
mutex_unlock(&iommu->lock);
return -EINVAL;
}
}
if (iommu->external_domain) {
if (find_iommu_group(iommu->external_domain, iommu_group)) {
mutex_unlock(&iommu->lock);
return -EINVAL;
}
/* Check for duplicates */
if (vfio_iommu_find_iommu_group(iommu, iommu_group)) {
mutex_unlock(&iommu->lock);
return -EINVAL;
}
group = kzalloc(sizeof(*group), GFP_KERNEL);