diff options
| author | Mike Belopuhov <mikeb@cvs.openbsd.org> | 2011-01-10 13:36:58 +0000 |
|---|---|---|
| committer | Mike Belopuhov <mikeb@cvs.openbsd.org> | 2011-01-10 13:36:58 +0000 |
| commit | f94392ccbaf3c8955688b433fec197eec6d5e66c (patch) | |
| tree | a0080083f0be4acb356db578eb20c52c297b109f /sys/dev/acpi/acpihpet.c | |
| parent | 67b32f0da7d3d367d523db68da1e450acc66af39 (diff) | |
Attach acpihpet only once. The matching code is changed because acpi bus
can be enumerated which means match routine should do the right thing and
prevent further attachments.
With input from kettenis, deraadt, miod; ok deraadt, kettenis
Diffstat (limited to 'sys/dev/acpi/acpihpet.c')
| -rw-r--r-- | sys/dev/acpi/acpihpet.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sys/dev/acpi/acpihpet.c b/sys/dev/acpi/acpihpet.c index 96e9be987ba..6df201382a5 100644 --- a/sys/dev/acpi/acpihpet.c +++ b/sys/dev/acpi/acpihpet.c @@ -1,4 +1,4 @@ -/* $OpenBSD: acpihpet.c,v 1.12 2010/07/21 19:35:15 deraadt Exp $ */ +/* $OpenBSD: acpihpet.c,v 1.13 2011/01/10 13:36:57 mikeb Exp $ */ /* * Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com> * @@ -29,6 +29,8 @@ #include <dev/acpi/acpivar.h> #include <dev/acpi/acpidev.h> +int acpihpet_attached; + int acpihpet_match(struct device *, void *, void *); void acpihpet_attach(struct device *, struct device *, void *); int acpihpet_activate(struct device *, int); @@ -87,9 +89,9 @@ acpihpet_match(struct device *parent, void *match, void *aux) struct acpi_table_header *hdr; /* - * If we do not have a table, it is not us + * If we do not have a table, it is not us; attach only once */ - if (aaa->aaa_table == NULL) + if (acpihpet_attached || aaa->aaa_table == NULL) return (0); /* @@ -170,6 +172,7 @@ acpihpet_attach(struct device *parent, struct device *self, void *aux) hpet_timecounter.tc_name = sc->sc_dev.dv_xname; tc_init(&hpet_timecounter); #endif + acpihpet_attached++; } #ifdef __HAVE_TIMECOUNTER |