--- src/sys/kern/lwkt_serialize.c	2005/05/24 21:22:05	1.1
+++ src/sys/kern/lwkt_serialize.c	2005/05/25 01:44:14	1.2
@@ -110,7 +110,11 @@ lwkt_serialize_handler_enable(lwkt_seria
 void
 lwkt_serialize_handler_call(lwkt_serialize_t s, void (*func)(void *), void *arg)
 {
-    if (atomic_intr_handler_is_enabled(&s->interlock)) {
+    /*
+     * note: a return value of 0 indicates that the interrupt handler is 
+     * enabled.
+     */
+    if (atomic_intr_handler_is_enabled(&s->interlock) == 0) {
 	atomic_intr_cond_enter(&s->interlock, lwkt_serialize_sleep, s);
 	if (atomic_intr_handler_is_enabled(&s->interlock) == 0)
 	    func(arg);