diff --git a/hw/net/net_tx_pkt.c b/hw/net/net_tx_pkt.c
index 9560e4a49e..da262edc3e 100644
--- a/hw/net/net_tx_pkt.c
+++ b/hw/net/net_tx_pkt.c
@@ -379,7 +379,10 @@ bool net_tx_pkt_add_raw_fragment(struct NetTxPkt *pkt, hwaddr pa,
     hwaddr mapped_len = 0;
     struct iovec *ventry;
     assert(pkt);
-    assert(pkt->max_raw_frags > pkt->raw_frags);
+
+    if (pkt->raw_frags >= pkt->max_raw_frags) {
+        return false;
+    }
 
     if (!len) {
         return true;
diff --git a/net/colo-compare.c b/net/colo-compare.c
index cc15f23dea..2c20de1537 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -1442,9 +1442,7 @@ static void colo_compare_finalize(Object *obj)
         qemu_chr_fe_deinit(&s->chr_notify_dev, false);
     }
 
-    if (s->iothread) {
-        colo_compare_timer_del(s);
-    }
+    colo_compare_timer_del(s);
 
     qemu_bh_delete(s->event_bh);
 
@@ -1470,9 +1468,7 @@ static void colo_compare_finalize(Object *obj)
         g_hash_table_destroy(s->connection_track_table);
     }
 
-    if (s->iothread) {
-        object_unref(OBJECT(s->iothread));
-    }
+    object_unref(OBJECT(s->iothread));
 
     g_free(s->pri_indev);
     g_free(s->sec_indev);