From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:53240 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423341AbbEOAz7 (ORCPT ); Thu, 14 May 2015 20:55:59 -0400 Subject: Patch "ACPI / PNP: add two IDs to list for PNPACPI device enumeration" has been added to the 4.0-stable tree To: Witold.Szczeponik@gmx.net, gregkh@linuxfoundation.org, rafael.j.wysocki@intel.com Cc: , From: Date: Thu, 14 May 2015 17:55:58 -0700 Message-ID: <143165135811952@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ACPI / PNP: add two IDs to list for PNPACPI device enumeration to the 4.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: acpi-pnp-add-two-ids-to-list-for-pnpacpi-device-enumeration.patch and it can be found in the queue-4.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 622532bb2fad8fe342fb685727ae0be566f6be5d Mon Sep 17 00:00:00 2001 From: Witold Szczeponik Date: Fri, 1 May 2015 19:05:20 +0200 Subject: ACPI / PNP: add two IDs to list for PNPACPI device enumeration From: Witold Szczeponik commit 622532bb2fad8fe342fb685727ae0be566f6be5d upstream. Commit eec15edbb0e1 (ACPI / PNP: use device ID list for PNPACPI device enumeration) changed the way how ACPI devices are enumerated and when they are added to the PNP bus. However, it broke the sound card support on (at least) a vintage IBM ThinkPad 600E: with said commit applied, two of the necessary "CSC01xx" devices are not added to the PNP bus and hence can not be found during the initialization of the "snd-cs4236" module. As a consequence, loading "snd-cs4236" causes null pointer exceptions. The attached patch fixes the problem end re-enables sound on the IBM ThinkPad 600E. Fixes: eec15edbb0e1 (ACPI / PNP: use device ID list for PNPACPI device enumeration) Signed-off-by: Witold Szczeponik Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/acpi_pnp.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/acpi/acpi_pnp.c +++ b/drivers/acpi/acpi_pnp.c @@ -304,6 +304,8 @@ static const struct acpi_device_id acpi_ {"PNPb006"}, /* cs423x-pnpbios */ {"CSC0100"}, + {"CSC0103"}, + {"CSC0110"}, {"CSC0000"}, {"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */ /* es18xx-pnpbios */ Patches currently in stable-queue which might be from Witold.Szczeponik@gmx.net are queue-4.0/acpi-pnp-add-two-ids-to-list-for-pnpacpi-device-enumeration.patch