diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 67c4bc7..cb50f4a 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -102,7 +102,8 @@
 	struct virtio_chan *chan = client->trans;
 
 	mutex_lock(&virtio_9p_lock);
-	chan->inuse = false;
+	if (chan)
+		chan->inuse = false;
 	mutex_unlock(&virtio_9p_lock);
 }