On Tue, 5 Feb 2019 15:31:27 +0100 Igor Mammedov <[email protected]> wrote:
> QEMU will crashes with > qapi/qobject-output-visitor.c:210: qobject_output_complete: Assertion > `qov->root && ((&qov->stack)->slh_first == ((void *)0))' failed > when trying to get value of empty hostmem.host-nodes property. > > Fix it by calling visitor even if host-nodes wasn't set > before exiting from property getter to return empty list. > > Signed-off-by: Igor Mammedov <[email protected]> > --- > backends/hostmem.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/backends/hostmem.c b/backends/hostmem.c > index 0c8ef17..fe14be5 100644 > --- a/backends/hostmem.c > +++ b/backends/hostmem.c > @@ -86,7 +86,7 @@ host_memory_backend_get_host_nodes(Object *obj, Visitor *v, > const char *name, > > value = find_first_bit(backend->host_nodes, MAX_NODES); > if (value == MAX_NODES) { > - return; > + goto ret; > } > > *node = g_malloc0(sizeof(**node)); > @@ -104,6 +104,7 @@ host_memory_backend_get_host_nodes(Object *obj, Visitor > *v, const char *name, > node = &(*node)->next; > } while (true); > > +ret: > visit_type_uint16List(v, name, &host_nodes, errp); > } > Markus/Michael, does this patch make sense from QAPI point of view?
