diff --git a/sys/dev/misc/musycc/musycc.c b/sys/dev/misc/musycc/musycc.c
--- a/sys/dev/misc/musycc/musycc.c
+++ b/sys/dev/misc/musycc/musycc.c
@@ -650,6 +650,7 @@
 	if (sch == NULL || sch->state != UP) {
 		/* XXX: this should not happen once the driver is done */
 		kprintf("Xmit packet on uninitialized channel %d\n", ch);
+		return;
 	}
 	if (sc->mdt[ch] == NULL)
 		return; 	/* XXX: can this happen ? */