iothread: check iothread->ctx before aio_context_unref to avoid assertion

if iothread->ctx is set to NULL, aio_context_unref triggers the assertion:
g_source_unref: assertion 'source != NULL' failed.
The patch fixes it.

Signed-off-by: Lin Ma <lma@suse.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20160926052958.10716-1-lma@suse.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Lin Ma 2016-09-26 13:29:58 +08:00 committed by Stefan Hajnoczi
parent 6b9424689a
commit eb7b5c3511
1 changed files with 3 additions and 0 deletions

View File

@ -75,6 +75,9 @@ static void iothread_instance_finalize(Object *obj)
iothread_stop(obj, NULL);
qemu_cond_destroy(&iothread->init_done_cond);
qemu_mutex_destroy(&iothread->init_done_lock);
if (!iothread->ctx) {
return;
}
aio_context_unref(iothread->ctx);
}