android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
a956bd6f85
android_kernel_asus_sm8350/arch
History
Andreas Herrmann a956bd6f85 x86, microcode: Fix sysfs warning during module unload on unsupported CPUs 
Loading the microcode driver on an unsupported CPU and subsequently
unloading the driver causes

 WARNING: at fs/sysfs/group.c:138 mc_device_remove+0x5f/0x70 [microcode]()
 Hardware name: 01972NG
 sysfs group ffffffffa00013d0 not found for kobject 'cpu0'
 Modules linked in: snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel btusb snd_hda_codec bluetooth thinkpad_acpi rfkill microcode(-) [last unloaded: cfg80211]
 Pid: 4560, comm: modprobe Not tainted 3.4.0-rc2-00002-g258f742 #5
 Call Trace:
  [<ffffffff8103113b>] ? warn_slowpath_common+0x7b/0xc0
  [<ffffffff81031235>] ? warn_slowpath_fmt+0x45/0x50
  [<ffffffff81120e74>] ? sysfs_remove_group+0x34/0x120
  [<ffffffffa00000ef>] ? mc_device_remove+0x5f/0x70 [microcode]
  [<ffffffff81331eb9>] ? subsys_interface_unregister+0x69/0xa0
  [<ffffffff81563526>] ? mutex_lock+0x16/0x40
  [<ffffffffa0000c3e>] ? microcode_exit+0x50/0x92 [microcode]
  [<ffffffff8107051d>] ? sys_delete_module+0x16d/0x260
  [<ffffffff810a0065>] ? wait_iff_congested+0x45/0x110
  [<ffffffff815656af>] ? page_fault+0x1f/0x30
  [<ffffffff81565ba2>] ? system_call_fastpath+0x16/0x1b

on recent kernels.

This is due to commit 8a25a2fd12 ("cpu: convert 'cpu' and
'machinecheck' sysdev_class to a regular subsystem") which renders
commit 6c53cbfced ("x86, microcode: Correct sysdev_add error path")
useless.

See http://marc.info/?l=linux-kernel&m=133416246406478

Avoid above warning by restoring the old driver behaviour before
6c53cbfced ("x86, microcode: Correct sysdev_add error path").

Cc: stable@vger.kernel.org
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: http://lkml.kernel.org/r/20120411163849.GE4794@alberich.amd.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2012-04-13 11:49:06 +02:00
..
alpha Merge branch 'akpm' (Andrew's patch-bomb) 2012-04-05 15:30:34 -07:00
arm ARM: SoC fixes for 3.4-rc2 2012-04-05 22:13:39 -07:00
avr32 avr32: fix nop compile fails from system.h split up 2012-04-04 08:23:44 -07:00
blackfin blackfin: update defconfig for bf527-ezkit 2012-04-06 10:25:03 +08:00
c6x Merge branch 'akpm' (Andrew's patch-bomb) 2012-04-05 15:30:34 -07:00
cris Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
frv frv: fix warnings in mb93090-mb00/pci-dma.c about implicit EXPORT_SYMBOL 2012-04-02 14:41:26 -07:00
h8300 Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
hexagon Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
ia64 Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
m32r Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
m68k m68k/q40: Add missing platform check before registering platform devices 2012-04-01 22:57:53 +02:00
microblaze Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
mips Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
mn10300 Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
openrisc Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
parisc parisc: fix missing cmpxchg file error from system.h split 2012-04-02 14:41:26 -07:00
powerpc Merge branch 'kvm-updates/3.4' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2012-04-07 09:53:33 -07:00
s390 [S390] Fix build errors (fallout from system.h disintegration) 2012-03-30 09:41:12 +02:00
score Delete all instances of asm/system.h 2012-03-28 18:30:03 +01:00
sh SuperH updates for 3.4-rc1 2012-04-07 09:52:46 -07:00
sparc Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
tile Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2012-04-06 17:56:20 -07:00
um remove references to cpu_*_map in arch/ 2012-03-29 15:38:30 +10:30
unicore32 Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-04-04 17:13:43 -07:00
x86 x86, microcode: Fix sysfs warning during module unload on unsupported CPUs 2012-04-13 11:49:06 +02:00
xtensa Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
.gitignore
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2012-03-29 14:49:45 -07:00