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| author | Amit Shah <amit.shah@redhat.com> | 2010-04-27 18:03:57 +0530 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-04-28 08:58:21 -0500 |
| commit | 16af2e3c35990cb7aceb37ffe5827a28fd4614d0 (patch) | |
| tree | 82a894e53f61370efd25f4356160c95ff5217ee4 /hw/virtio-serial-bus.c | |
| parent | 295587f747c7747e37208540a7a7f4d13a6ba4de (diff) | |
| download | qemu-16af2e3c35990cb7aceb37ffe5827a28fd4614d0.tar.gz | |
virtio-serial: save/load: Ensure we have hot-plugged ports instantiated
If some ports that were hot-plugged on the source are not available on
the destination, fail migration instead of trying to deref a NULL
pointer.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reported-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/virtio-serial-bus.c')
| -rw-r--r-- | hw/virtio-serial-bus.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c index d31e62d055..5316ef626e 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -451,6 +451,13 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id) id = qemu_get_be32(f); port = find_port_by_id(s, id); + if (!port) { + /* + * The requested port was hot-plugged on the source but we + * don't have it + */ + return -EINVAL; + } port->guest_connected = qemu_get_byte(f); } |