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| author | Si-Wei Liu <si-wei.liu@oracle.com> | 2020-10-03 01:02:09 -0400 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-10-04 03:47:02 -0400 |
| commit | 1477c8aebb94a1db398c12d929a9d27bbd678d8c (patch) | |
| tree | fcfa8b329f2a0f59089a735083e8e1b86990fb4c | |
| parent | ab5122510b0a453c0ac898ec9952d38e80243ee7 (diff) | |
| download | linux-1477c8aebb94a1db398c12d929a9d27bbd678d8c.tar.gz | |
vhost-vdpa: fix vhost_vdpa_map() on error condition
vhost_vdpa_map() should remove the iotlb entry just added
if the corresponding mapping fails to set up properly.
Fixes: 4c8cf31885f6 ("vhost: introduce vDPA-based backend")
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Link: https://lore.kernel.org/r/1601701330-16837-2-git-send-email-si-wei.liu@oracle.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | drivers/vhost/vdpa.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 9a48439c52e2b2..02ff5372d5fe49 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -565,6 +565,9 @@ static int vhost_vdpa_map(struct vhost_vdpa *v, perm_to_iommu_flags(perm)); } + if (r) + vhost_iotlb_del_range(dev->iotlb, iova, iova + size - 1); + return r; } |