From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933991AbYDQB3A (ORCPT ); Wed, 16 Apr 2008 21:29:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762062AbYDQBJs (ORCPT ); Wed, 16 Apr 2008 21:09:48 -0400 Received: from sous-sol.org ([216.99.217.87]:59015 "EHLO sous-sol.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758769AbYDQBJq (ORCPT ); Wed, 16 Apr 2008 21:09:46 -0400 Message-Id: <20080417010356.315553878@sous-sol.org> References: <20080417010122.148289106@sous-sol.org> User-Agent: quilt/0.46-1 Date: Wed, 16 Apr 2008 18:02:15 -0700 From: Chris Wright To: linux-kernel@vger.kernel.org, stable@kernel.org, jejb@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Alok Kataria , Dan Arai , Len Brown Subject: acpi: fix "buggy BIOS check" when CPUs are hot removed Content-Disposition: inline; filename=acpi-fix-buggy-bios-check-when-cpus-are-hot-removed.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org -stable review patch. If anyone has any objections, please let us know. --------------------- From: Alok Kataria upstream commit: ba62b077871a5255e271f4fdae57167651839277 Fixes a BUG in ACPI hotplugging. processor_device_array[pr->id] needs to be set to NULL when removing a CPU. Else the "buggy BIOS check" in acpi_processor_start mistakenly fires when a CPU is removed from the system and then later re-added. Signed-off-by: Alok N Kataria Signed-off-by: Dan Arai Cc: Len Brown Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Chris Wright --- drivers/acpi/processor_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -792,7 +792,7 @@ static int acpi_processor_remove(struct acpi_processor_remove_fs(device); processors[pr->id] = NULL; - + processor_device_array[pr->id] = NULL; kfree(pr); return 0; --