diff --git a/sys/dev/aha/aha.c b/sys/dev/aha/aha.c
index 4efbb32d159..7ccd1c3c73e 100644
--- a/sys/dev/aha/aha.c
+++ b/sys/dev/aha/aha.c
@@ -209,7 +209,6 @@ aha_free(struct aha_softc *aha)
 	case 6:
 		bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array,
 		    aha->ccb_dmamap);
-		bus_dmamap_destroy(aha->ccb_dmat, aha->ccb_dmamap);
 	case 5:
 		bus_dma_tag_destroy(aha->ccb_dmat);
 	case 4:
@@ -217,7 +216,6 @@ aha_free(struct aha_softc *aha)
 	case 3:
 		bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes,
 		    aha->mailbox_dmamap);
-		bus_dmamap_destroy(aha->mailbox_dmat, aha->mailbox_dmamap);
 	case 2:
 		bus_dma_tag_destroy(aha->buffer_dmat);
 	case 1:
diff --git a/sys/dev/ahb/ahb.c b/sys/dev/ahb/ahb.c
index fd07c443820..588e1aa1f48 100644
--- a/sys/dev/ahb/ahb.c
+++ b/sys/dev/ahb/ahb.c
@@ -421,7 +421,6 @@ ahbfree(struct ahb_softc *ahb)
 	case 3:
 		bus_dmamem_free(ahb->ecb_dmat, ahb->ecb_array,
 				ahb->ecb_dmamap);
-		bus_dmamap_destroy(ahb->ecb_dmat, ahb->ecb_dmamap);
 	case 2:
 		bus_dma_tag_destroy(ahb->ecb_dmat);
 	case 1:
diff --git a/sys/dev/aic7xxx/aic79xx.c b/sys/dev/aic7xxx/aic79xx.c
index fac80cabeb3..2c8b6d45524 100644
--- a/sys/dev/aic7xxx/aic79xx.c
+++ b/sys/dev/aic7xxx/aic79xx.c
@@ -5413,8 +5413,6 @@ ahd_free(struct ahd_softc *ahd)
 	case 3:
 		aic_dmamem_free(ahd, ahd->shared_data_dmat, ahd->qoutfifo,
 				ahd->shared_data_map.dmamap);
-		aic_dmamap_destroy(ahd, ahd->shared_data_dmat,
-				   ahd->shared_data_map.dmamap);
 		/* FALLTHROUGH */
 	case 2:
 		aic_dma_tag_destroy(ahd, ahd->shared_data_dmat);
diff --git a/sys/dev/aic7xxx/aic7xxx.c b/sys/dev/aic7xxx/aic7xxx.c
index e1428e98866..f1723fbab53 100644
--- a/sys/dev/aic7xxx/aic7xxx.c
+++ b/sys/dev/aic7xxx/aic7xxx.c
@@ -4061,8 +4061,6 @@ ahc_free(struct ahc_softc *ahc)
 	case 3:
 		aic_dmamem_free(ahc, ahc->shared_data_dmat, ahc->qoutfifo,
 				ahc->shared_data_dmamap);
-		aic_dmamap_destroy(ahc, ahc->shared_data_dmat,
-				   ahc->shared_data_dmamap);
 		/* FALLTHROUGH */
 	case 2:
 		aic_dma_tag_destroy(ahc, ahc->shared_data_dmat);
@@ -4501,8 +4499,6 @@ ahc_fini_scbdata(struct ahc_softc *ahc)
 	case 5:
 		aic_dmamem_free(ahc, scb_data->sense_dmat, scb_data->sense,
 				scb_data->sense_dmamap);
-		aic_dmamap_destroy(ahc, scb_data->sense_dmat,
-				   scb_data->sense_dmamap);
 	case 4:
 		aic_dma_tag_destroy(ahc, scb_data->sense_dmat);
 	case 3:
@@ -4511,8 +4507,6 @@ ahc_fini_scbdata(struct ahc_softc *ahc)
 	case 2:
 		aic_dmamem_free(ahc, scb_data->hscb_dmat, scb_data->hscbs,
 				scb_data->hscb_dmamap);
-		aic_dmamap_destroy(ahc, scb_data->hscb_dmat,
-				   scb_data->hscb_dmamap);
 	case 1:
 		aic_dma_tag_destroy(ahc, scb_data->hscb_dmat);
 		break;
diff --git a/sys/dev/de/if_de.c b/sys/dev/de/if_de.c
index 5e8886bec43..71448ab681a 100644
--- a/sys/dev/de/if_de.c
+++ b/sys/dev/de/if_de.c
@@ -4558,7 +4558,6 @@ tulip_busdma_cleanup(tulip_softc_t * const sc)
     if (sc->tulip_setupbuf != NULL) {
 	bus_dmamem_free(sc->tulip_setup_tag, sc->tulip_setupbuf,
 	    sc->tulip_setup_map);
-	bus_dmamap_destroy(sc->tulip_setup_tag, sc->tulip_setup_map);
 	sc->tulip_setup_map = NULL;
 	sc->tulip_setupbuf = NULL;
     }