diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index 725b0dd14269..f4c132ab39ed 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -343,10 +343,10 @@ static int cmf_copy_block(struct ccw_device *cdev)
 
 	if (sch->schib.scsw.fctl & SCSW_FCTL_START_FUNC) {
 		/* Don't copy if a start function is in progress. */
-		if ((!sch->schib.scsw.actl & SCSW_ACTL_SUSPENDED) &&
+		if ((!(sch->schib.scsw.actl & SCSW_ACTL_SUSPENDED)) &&
 		    (sch->schib.scsw.actl &
 		     (SCSW_ACTL_DEVACT | SCSW_ACTL_SCHACT)) &&
-		    (!sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS))
+		    (!(sch->schib.scsw.stctl & SCSW_STCTL_SEC_STATUS)))
 			return -EBUSY;
 	}
 	cmb_data = cdev->private->cmb;