Add missing short-circuit in bcmpcie_dmamap_load_raw().

ok patrick@

diff --git a/sys/dev/fdt/bcm2711_pcie.c b/sys/dev/fdt/bcm2711_pcie.c
index 5e153e1..2c980dd 100644 (file)
--- a/sys/dev/fdt/bcm2711_pcie.c
+++ b/sys/dev/fdt/bcm2711_pcie.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: bcm2711_pcie.c,v 1.9 2021/12/04 16:08:02 kettenis Exp $       */
+/*     $OpenBSD: bcm2711_pcie.c,v 1.10 2021/12/06 18:02:58 kettenis Exp $      */
 /*
  * Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -551,6 +551,9 @@ bcmpcie_dmamap_load_raw(bus_dma_tag_t t, bus_dmamap_t map,
        if (error)
                return error;
 
+       if (sc->sc_dmaranges == NULL)
+               return 0;
+
        /* For each segment. */
        for (seg = 0; seg < map->dm_nsegs; seg++) {
                uint64_t addr = map->dm_segs[seg].ds_addr;