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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-26 16:02:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-26 16:02:07 -0700
commit1a041a23da7c77b53c71fe11b4f940388bee37b1 (patch)
tree15be66d3768d609a477a99a0d59522133a831ee0 /arch
parentee13cbdec4381b5bdb24683b5e7fcc29084c355d (diff)
parentff4878089e1eaeac79d57878ad4ea32910fb4037 (diff)
downloadlinux-2.6.34-ux500-1a041a23da7c77b53c71fe11b4f940388bee37b1.tar.gz
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
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/hpet.c2
-rw-r--r--arch/x86/kernel/i8259.c25
2 files changed, 16 insertions, 11 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index a198b7c87a1..ba390d73117 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -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) {
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 7c9f02c130f..cafa7c80ac9 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -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);