1 files changed, 2 insertions, 0 deletions
diff --git a/hw/virtio-9p-debug.c b/hw/virtio-9p-debug.c
index e4ab4bca5f..c1b0e6f066 100644
--- a/hw/virtio-9p-debug.c
+++ b/hw/virtio-9p-debug.c
@@ -327,6 +327,8 @@ void pprint_pdu(V9fsPDU *pdu)
         llogfile = fopen("/tmp/pdu.log", "w");
     }
 
+    BUG_ON(!llogfile);
+
     switch (pdu->id) {
     case P9_TVERSION:
         fprintf(llogfile, "TVERSION: (");