From b5fcabd99ebd97dd01d476c8b0c413fc89e787cd Mon Sep 17 00:00:00 2001
From: jordan <jordan@openbsd.org>
Date: Fri, 23 Jul 2010 18:38:46 +0000
Subject: [PATCH] Fix searchname to handle short name segments, remove hack in
 acpidock.

---
 sys/dev/acpi/acpidock.c |  8 ++------
 sys/dev/acpi/dsdt.c     | 13 ++++++++++---
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/sys/dev/acpi/acpidock.c b/sys/dev/acpi/acpidock.c
index 964a6adfcb2..2d213803e23 100644
--- a/sys/dev/acpi/acpidock.c
+++ b/sys/dev/acpi/acpidock.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: acpidock.c,v 1.40 2010/07/21 19:35:15 deraadt Exp $ */
+/* $OpenBSD: acpidock.c,v 1.41 2010/07/23 18:38:46 jordan Exp $ */
 /*
  * Copyright (c) 2006,2007 Michael Knudsen <mk@openbsd.org>
  *
@@ -282,11 +282,7 @@ acpidock_foundejd(struct aml_node *node, void *arg)
 	if (aml_evalnode(sc->sc_acpi, node, 0, NULL, &res) == -1)
 		printf(": error\n");
 	else {
-		if (!memcmp(res.v_string, "_SB.", 4)) {
-			dock = aml_searchname(&aml_root, "_SB_");
-			dock = aml_searchname(dock, res.v_string+4);
-		} else
-			dock = aml_searchname(&aml_root, res.v_string);
+		dock = aml_searchname(&aml_root, res.v_string);
 
 		if (dock == sc->sc_devnode)
 			/* Add all children devices of Device containing _EJD */
diff --git a/sys/dev/acpi/dsdt.c b/sys/dev/acpi/dsdt.c
index f5876bc4af8..7f4a319c9a1 100644
--- a/sys/dev/acpi/dsdt.c
+++ b/sys/dev/acpi/dsdt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: dsdt.c,v 1.172 2010/07/22 14:19:47 deraadt Exp $ */
+/* $OpenBSD: dsdt.c,v 1.173 2010/07/23 18:38:46 jordan Exp $ */
 /*
  * Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org>
  *
@@ -4101,6 +4101,8 @@ struct aml_node *
 aml_searchname(struct aml_node *root, const void *vname)
 {
 	char *name = (char *)vname;
+	char  nseg[AML_NAMESEG_LEN + 1];
+	int   i;
 
 	dnprintf(25,"Searchname: %s:%s = ", aml_nodename(root), vname);
 	if (*name == AMLOP_ROOTCHAR) {
@@ -4108,8 +4110,13 @@ aml_searchname(struct aml_node *root, const void *vname)
 		name++;
 	}
 	while (*name != 0) {
-		root = __aml_search(root, name, 0);
-		name += (name[4] == '.') ? 5 : 4;
+		/* Ugh.. we can have short names here: append '_' */
+		strlcpy(nseg, "____", sizeof(nseg));
+		for (i=0; i < AML_NAMESEG_LEN && *name && *name != '.'; i++)
+			nseg[i] = *name++;
+		if (*name == '.')
+			name++;
+		root = __aml_search(root, nseg, 0);
 	}
 	dnprintf(25,"%p %s\n", root, aml_nodename(root));
 	return root;
-- 
2.20.1