diff options
| -rw-r--r-- | memory.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/memory.c b/memory.c index eae67be453..19f1d36bd4 100644 --- a/memory.c +++ b/memory.c @@ -1360,7 +1360,10 @@ void mtree_info(fprintf_function mon_printf, void *f) g_free(ml2); } - QTAILQ_INIT(&ml_head); - mon_printf(f, "I/O\n"); - mtree_print_mr(mon_printf, f, address_space_io.root, 0, 0, &ml_head); + if (address_space_io.root && + !QTAILQ_EMPTY(&address_space_io.root->subregions)) { + QTAILQ_INIT(&ml_head); + mon_printf(f, "I/O\n"); + mtree_print_mr(mon_printf, f, address_space_io.root, 0, 0, &ml_head); + } } |