Messages in this thread Patch in this message | | | From | Si-Wei Liu <> | Subject | [PATCH v3 1/2] vhost-vdpa: fix vhost_vdpa_map() on error condition | Date | Sat, 3 Oct 2020 01:02:09 -0400 |
| |
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> --- drivers/vhost/vdpa.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 796fe97..0f27919 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; } -- 1.8.3.1
| |