diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c
index 19a9caf..be46805 100644
--- a/fs/autofs/waitq.c
+++ b/fs/autofs/waitq.c
@@ -182,7 +182,7 @@
 {
 	struct autofs_wait_queue *wq, **wql;
 
-	for ( wql = &sbi->queues ; (wq = *wql) != 0 ; wql = &wq->next ) {
+	for (wql = &sbi->queues; (wq = *wql) != NULL; wql = &wq->next) {
 		if ( wq->wait_queue_token == wait_queue_token )
 			break;
 	}