From: Julia Suvorova <[email protected]> Device unplug can be done asynchronously. Thus, sending the second device_del before the previous unplug is complete may lead to unexpected results. On PCIe devices, this cancels the hot-unplug process.
Signed-off-by: Julia Suvorova <[email protected]> Reviewed-by: Stefan Hajnoczi <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> --- qdev-monitor.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/qdev-monitor.c b/qdev-monitor.c index 8ce71a2..8a2a953 100644 --- a/qdev-monitor.c +++ b/qdev-monitor.c @@ -887,6 +887,12 @@ void qmp_device_del(const char *id, Error **errp) { DeviceState *dev = find_device_state(id, errp); if (dev != NULL) { + if (dev->pending_deleted_event) { + error_setg(errp, "Device %s is already in the " + "process of unplug", id); + return; + } + qdev_unplug(dev, errp); } } -- 1.8.3.1
