Index: uspace/lib/usb/src/addrkeep.c
===================================================================
--- uspace/lib/usb/src/addrkeep.c	(revision dd455b1a7cea220c7a6dbf1a048e84abd0b19ac1)
+++ uspace/lib/usb/src/addrkeep.c	(revision 621afdb4b44504ffb996f05acf3aad6ffeceb1ff)
@@ -149,4 +149,5 @@
 			&addresses->default_condvar_guard);
 	}
+	addresses->default_available = false;
 	fibril_mutex_unlock(&addresses->default_condvar_guard);
 }