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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Do not try to disable hpet if it hasn't been initialized before
  x86, i8259: Only register sysdev if we have a real 8259 PIC
This commit is contained in:
Linus Torvalds 2010-07-26 16:02:07 -07:00
parent ee13cbdec4 ff4878089e
commit 1a041a23da
2 changed files with 16 additions and 11 deletions
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2
arch/x86/kernel/hpet.c
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@ -964,7 +964,7 @@ fs_initcall(hpet_late_init);
void hpet_disable(void)
{
if (is_hpet_capable()) {
if (is_hpet_capable() && hpet_virt_address) {
unsigned int cfg = hpet_readl(HPET_CFG);
if (hpet_legacy_int_enabled) {

25
arch/x86/kernel/i8259.c
View File

@ -276,16 +276,6 @@ static struct sys_device device_i8259A = {
.cls = &i8259_sysdev_class,
};
static int __init i8259A_init_sysfs(void)
{
int error = sysdev_class_register(&i8259_sysdev_class);
if (!error)
error = sysdev_register(&device_i8259A);
return error;
}
device_initcall(i8259A_init_sysfs);
static void mask_8259A(void)
{
unsigned long flags;
@ -407,3 +397,18 @@ struct legacy_pic default_legacy_pic = {
};
struct legacy_pic *legacy_pic = &default_legacy_pic;
static int __init i8259A_init_sysfs(void)
{
int error;
if (legacy_pic != &default_legacy_pic)
return 0;
error = sysdev_class_register(&i8259_sysdev_class);
if (!error)
error = sysdev_register(&device_i8259A);
return error;
}
device_initcall(i8259A_init_sysfs);