From: kettenis <kettenis@openbsd.org>
Date: Tue, 7 Dec 2021 10:15:25 +0000 (+0000)
Subject: Fix parsing of SR_IRQ resource descriptors.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=912c5db17db85b8dc024da9f9579b5b4cdcf784f;p=openbsd

Fix parsing of SR_IRQ resource descriptors.

ok patrick@, anton@
---

diff --git a/sys/dev/acpi/acpi.c b/sys/dev/acpi/acpi.c
index 7577424e8a2..1bf5eb134ab 100644
--- a/sys/dev/acpi/acpi.c
+++ b/sys/dev/acpi/acpi.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: acpi.c,v 1.401 2021/11/02 02:17:56 deraadt Exp $ */
+/* $OpenBSD: acpi.c,v 1.402 2021/12/07 10:15:25 kettenis Exp $ */
 /*
  * Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com>
  * Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org>
@@ -3272,7 +3272,7 @@ acpi_parse_resources(int crsidx, union acpi_resource *crs, void *arg)
 	case SR_IRQ:
 		aaa->aaa_irq[aaa->aaa_nirq] = ffs(crs->sr_irq.irq_mask) - 1;
 		/* Default is exclusive, active-high, edge triggered. */
-		if (AML_CRSLEN(crs) < 3)
+		if (AML_CRSLEN(crs) < 4)
 			flags = SR_IRQ_MODE;
 		else
 			flags = crs->sr_irq.irq_flags;