diff --git a/sys/cam/ata/ata_da.c b/sys/cam/ata/ata_da.c
--- a/sys/cam/ata/ata_da.c
+++ b/sys/cam/ata/ata_da.c
@@ -1377,10 +1377,6 @@
 		cam_periph_async(periph, code, path, arg);
 		if (softc->state != ADA_STATE_NORMAL)
 			break;
-		memset(&cgd, 0, sizeof(cgd));
-		xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
-		cgd.ccb_h.func_code = XPT_GDEV_TYPE;
-		xpt_action((union ccb *)&cgd);
 		if (ADA_RA >= 0 && softc->flags & ADA_FLAG_CAN_RAHEAD)
 			softc->state = ADA_STATE_RAHEAD;
 		else if (ADA_WC >= 0 && softc->flags & ADA_FLAG_CAN_WCACHE)