diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 53226b1..985283c 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1241,7 +1241,7 @@
 		       id[84], id[85], id[86], id[87], id[88]);
 
 	/* initialize to-be-configured parameters */
-	dev->flags = 0;
+	dev->flags &= ~ATA_DFLAG_CFG_MASK;
 	dev->max_sectors = 0;
 	dev->cdb_len = 0;
 	dev->n_sectors = 0;