diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index b0eba39..89a2a9f 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -1012,7 +1012,7 @@
 static int __ppa_attach(struct parport *pb)
 {
 	struct Scsi_Host *host;
-	DECLARE_WAIT_QUEUE_HEAD(waiting);
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waiting);
 	DEFINE_WAIT(wait);
 	ppa_struct *dev;
 	int ports;