Commit a543a554 authored by Eric Blake's avatar Eric Blake Committed by Markus Armbruster
Browse files

spapr_drc: Expose 'null' in qom-get when there is no fdt 



Now that the QMP output visitor supports an explicit null
output, we should utilize it to make it easier to diagnose
the difference between a missing fdt ('null') vs. a
present-but-empty one ('{}').

(Note that this reverts the behavior of commit ab8bf1d7, taking
us back to the behavior of commit 6c2f9a15 [which in turn
stemmed from a crash fix in 1d10b445]; but that this time,
the change is intentional and not an accidental side-effect.)

Signed-off-by: default avatarEric Blake <eblake@redhat.com>
Acked-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Message-Id: <1461879932-9020-17-git-send-email-eblake@redhat.com>
Signed-off-by: default avatarMarkus Armbruster <armbru@redhat.com>
parent 3df016f1

hw/ppc/spapr_drc.c

+1 −5
Original line number Diff line number Diff line
@@ -269,11 +269,7 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, 
    void *fdt;



    if (!drc->fdt) {

        visit_start_struct(v, name, NULL, 0, &err);

        if (!err) {

            visit_end_struct(v, &err);

        }

        error_propagate(errp, err);

        visit_type_null(v, NULL, errp);

        return;

    }