Index: ld_sdmmc.c
===================================================================
RCS file: /cvsroot/src/sys/dev/sdmmc/ld_sdmmc.c,v
retrieving revision 1.16
diff -u -p -r1.16 ld_sdmmc.c
--- ld_sdmmc.c	20 May 2015 13:09:34 -0000	1.16
+++ ld_sdmmc.c	25 May 2015 09:28:40 -0000
@@ -181,6 +181,15 @@ ld_sdmmc_start(struct ld_softc *ld, stru
 	struct ld_sdmmc_softc *sc = device_private(ld->sc_dv);
 	struct ld_sdmmc_task *task = &sc->sc_task;
 
+	/* is everything done in terms of blocks? */
+	if (bp->b_rawblkno >= sc->sc_sf->csd.capacity) {
+		/* trying to read or write past end of device */
+		aprint_error_dev(sc->sc_ld.sc_dv,
+		    "blkno 0x%" PRIu64 " exceeds capacity %d\n",
+		    bp->b_rawblkno, sc->sc_sf->csd.capacity);
+		return EINVAL;
+	}
+
 	task->task_sc = sc;
 	task->task_bp = bp;
 	sdmmc_init_task(&task->task, ld_sdmmc_dobio, task);
@@ -208,20 +217,6 @@ ld_sdmmc_dobio(void *arg)
 	    device_xname(sc->sc_ld.sc_dv), bp->b_flags & B_READ ? "IN" : "OUT",
 	    bp->b_rawblkno, bp->b_bcount));
 
-	/* is everything done in terms of blocks? */
-	if (bp->b_rawblkno >= sc->sc_sf->csd.capacity) {
-		/* trying to read or write past end of device */
-		aprint_error_dev(sc->sc_ld.sc_dv,
-		    "blkno 0x%" PRIu64 " exceeds capacity %d\n",
-		    bp->b_rawblkno, sc->sc_sf->csd.capacity);
-		bp->b_error = EINVAL;
-		bp->b_resid = bp->b_bcount;
-		s = splbio();
-		lddone(&sc->sc_ld, bp);
-		splx(s);
-		return;
-	}
-
 	s = splbio();
 	if (bp->b_flags & B_READ)
 		error = sdmmc_mem_read_block(sc->sc_sf, bp->b_rawblkno,