diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index dfe542b206cc..0eab05a37e65 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -542,9 +542,8 @@ dasd_kmalloc_request(char *magic, int cplength, int datasize,
 	struct dasd_ccw_req *cqr;
 
 	/* Sanity checks */
-	if ( magic == NULL || datasize > PAGE_SIZE ||
-	     (cplength*sizeof(struct ccw1)) > PAGE_SIZE)
-		BUG();
+	BUG_ON( magic == NULL || datasize > PAGE_SIZE ||
+	     (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
 
 	cqr = kzalloc(sizeof(struct dasd_ccw_req), GFP_ATOMIC);
 	if (cqr == NULL)
@@ -584,9 +583,8 @@ dasd_smalloc_request(char *magic, int cplength, int datasize,
 	int size;
 
 	/* Sanity checks */
-	if ( magic == NULL || datasize > PAGE_SIZE ||
-	     (cplength*sizeof(struct ccw1)) > PAGE_SIZE)
-		BUG();
+	BUG_ON( magic == NULL || datasize > PAGE_SIZE ||
+	     (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
 
 	size = (sizeof(struct dasd_ccw_req) + 7L) & -8L;
 	if (cplength > 0)