diff --git a/drivers/macintosh/via-maciisi.c b/drivers/macintosh/via-maciisi.c
index ad271e7..0129fcc 100644
--- a/drivers/macintosh/via-maciisi.c
+++ b/drivers/macintosh/via-maciisi.c
@@ -326,7 +326,7 @@
 		req->complete = 1;
 		return -EINVAL;
 	}
-	req->next = 0;
+	req->next = NULL;
 	req->sent = 0;
 	req->complete = 0;
 	req->reply_len = 0;
@@ -421,7 +421,7 @@
 
 	local_irq_save(flags);
 	if (via[IFR] & SR_INT) {
-		maciisi_interrupt(0, 0, 0);
+		maciisi_interrupt(0, NULL, NULL);
 	}
 	else /* avoid calling this function too quickly in a loop */
 		udelay(ADB_DELAY);