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[Ubuntu Foundations Team Bug Bot <1247154@xxxxxxxxxxxxxxxxxx>]

** Tags added: patch

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https://bugs.launchpad.net/bugs/1247154

Title:
  ACPI battery: non-void init function not returning a value

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Lucid:
  Triaged
Status in “linux” source package in Precise:
  Triaged
Status in “linux” source package in Quantal:
  Triaged

Bug description:
  The drivers/acpi/battery.c init function starts with:

  static int __init acpi_battery_init(void)
  {
  	if (acpi_disabled)
  		return;
  [ ... ]

  This could cause problems because, if ACPI is disabled, the driver
  init function would return 0 (success) without being initialised.

  The following compiler warning is shown when compiling Precise kernel:

  /home/henrix/src/precise/ubuntu-precise/drivers/acpi/battery.c: In function 'acpi_battery_init':
  /home/henrix/src/precise/ubuntu-precise/drivers/acpi/battery.c:1172:3: warning: 'return' with no value, in function returning non-void [-Wreturn-type]

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-56-generic 3.2.0-56.86
  ProcVersionSignature: Ubuntu 3.2.0-56.86-generic 3.2.51
  Uname: Linux 3.2.0-56-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  ubuntu     1607 F.... pulseaudio
   /dev/snd/controlC1:  ubuntu     1607 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1607 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfebf0000 irq 45'
     Mixer name	: 'Generic 1af4 ID 21'
     Components	: 'HDA:1af40021,1af40021,00100101'
     Controls      : 1
     Simple ctrls  : 1
  Card1.Amixer.info:
   Card hw:1 'I82801AAICH'/'Intel 82801AA-ICH with STAC9700,83,84 at irq 11'
     Mixer name	: 'SigmaTel STAC9700,83,84'
     Components	: 'AC97a:83847600'
     Controls      : 8
     Simple ctrls  : 12
  Card2.Amixer.info:
   Card hw:2 'AudioPCI'/'Ensoniq AudioPCI ENS1370 at 0xc400, irq 10'
     Mixer name	: 'Asahi Kasei AK4531'
     Components	: 'AK4531'
     Controls      : 43
     Simple ctrls  : 15
  Date: Fri Nov  1 15:15:26 2013
  HibernationDevice: RESUME=UUID=fb857da5-f276-48a8-a960-9e268be368ca
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64+mac (20120823.1)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  MachineType: Bochs Bochs
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-56-generic root=UUID=4aa0ea77-9f66-4074-a28f-6f808346c7a6 ro console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-56-generic N/A
   linux-backports-modules-3.2.0-56-generic  N/A
   linux-firmware                            1.79.7
  RfKill:
   
  SourcePackage: linux
  StagingDrivers: zram
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/01/2011
  dmi.bios.vendor: Bochs
  dmi.bios.version: Bochs
  dmi.chassis.type: 1
  dmi.chassis.vendor: Bochs
  dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2011:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr:
  dmi.product.name: Bochs
  dmi.sys.vendor: Bochs

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