This fixes an issue found by stress-testing device removal
of virtio console, as well as a similar issue found by
code review in virtio mem.

Changes from v1:
- added documentation
- added virtio mem changes
- missing new line in virtio console change
v1 Link: https://lore.kernel.org/r/20211005070354.265164-1-mst@redhat.com

Michael S. Tsirkin (3):
  virtio: document virtio_reset_device
  virtio_console: break out of buf poll on remove
  virtio_mem: break device on remove

 drivers/char/virtio_console.c |  7 +++++++
 drivers/virtio/virtio.c       | 16 ++++++++++++++++
 drivers/virtio/virtio_mem.c   |  2 ++
 3 files changed, 25 insertions(+)

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MST