Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael Tsirkin:
 "Very late in the cycle but both risky if left unfixed and more or less
  obvious.."

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails
  vhost-vdpa: protect concurrent access to vhost device iotlb