1 files changed, 4 insertions, 0 deletions
diff --git a/hw/char/spapr_vty.c b/hw/char/spapr_vty.c
index 4e464bd15a..c7f824ed13 100644
--- a/hw/char/spapr_vty.c
+++ b/hw/char/spapr_vty.c
@@ -228,6 +228,10 @@ VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg)
         return spapr_vty_get_default(spapr->vio_bus);
     }
 
+    if (!object_dynamic_cast(OBJECT(sdev), TYPE_VIO_SPAPR_VTY_DEVICE)) {
+        return NULL;
+    }
+
     return sdev;
 }