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authorskrll <skrll@NetBSD.org>2020-10-24 08:57:06 +0000
committerskrll <skrll@NetBSD.org>2020-10-24 08:57:06 +0000
commitd2fee5fd68b39c45b31983bcffd749c33a6a4363 (patch)
tree9a5e9b021536b15de23b563505fd50091458f2ca /sys/dev
parent672367c572b51bf721ed5e7059e9dfaadbf17e5c (diff)
Test the 64bit dma tag with BUS_DMA_TAG_VALID before using it.
Diffstat (limited to 'sys/dev')
-rw-r--r--sys/dev/acpi/vmbus_acpi.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/dev/acpi/vmbus_acpi.c b/sys/dev/acpi/vmbus_acpi.c
index ac4098820f0..ffd39296997 100644
--- a/sys/dev/acpi/vmbus_acpi.c
+++ b/sys/dev/acpi/vmbus_acpi.c
@@ -1,4 +1,4 @@
-/* $NetBSD: vmbus_acpi.c,v 1.2 2019/05/24 14:28:48 nonaka Exp $ */
+/* $NetBSD: vmbus_acpi.c,v 1.3 2020/10/24 08:57:06 skrll Exp $ */
/*
* Copyright (c) 2018 Kimihiro Nonaka <nonaka@NetBSD.org>
@@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vmbus_acpi.c,v 1.2 2019/05/24 14:28:48 nonaka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vmbus_acpi.c,v 1.3 2020/10/24 08:57:06 skrll Exp $");
#include <sys/param.h>
#include <sys/device.h>
@@ -84,7 +84,8 @@ vmbus_acpi_attach(device_t parent, device_t self, void *opaque)
sc->sc.sc_dev = self;
sc->sc.sc_iot = aa->aa_iot;
sc->sc.sc_memt = aa->aa_memt;
- sc->sc.sc_dmat = aa->aa_dmat64 ? aa->aa_dmat64 : aa->aa_dmat;
+ sc->sc.sc_dmat = BUS_DMA_TAG_VALID(aa->aa_dmat64) ?
+ aa->aa_dmat64 : aa->aa_dmat;
if (vmbus_attach(&sc->sc))
return;