]> nv-tegra.nvidia Code Review - linux-3.10.git/commit
x86: fix microcode driver newly spewing warnings
authorDmitry Adamushko <dmitry.adamushko@gmail.com>
Wed, 15 Apr 2009 14:51:48 +0000 (16:51 +0200)
committerIngo Molnar <mingo@elte.hu>
Thu, 16 Apr 2009 23:11:20 +0000 (01:11 +0200)
commit0917798d82212f884fff650e7e520de3b438f947
tree026718028b198658069203c1829b02cfb0095ced
parent4b065046273afa01ec8e3de7da407e8d3599251d
x86: fix microcode driver newly spewing warnings

Jeff Garzik reported this WARN_ON() noise:

> Kernel: 2.6.30-rc1-00306-g8371f87
> Hardware: ICH10 x86-64
>
> This is a regression from 2.6.29.  Microcode spews the following WARNING
> multiple times during boot:
>
> ------------[ cut here ]------------
> WARNING: at fs/sysfs/group.c:138 sysfs_remove_group+0xeb/0xf0()
> Hardware name:         sysfs group ffffffffa0209700 not found for
>  kobject 'cpu0'

Keep sysfs files around for cpus even when we failed to locate
microcode for them at the moment of module loading. The appropriate
microcode firmware can become available later on.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/microcode_core.c