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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-26 19:02:07 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-26 19:02:07 -0400
commit1a041a23da7c77b53c71fe11b4f940388bee37b1 (patch)
tree15be66d3768d609a477a99a0d59522133a831ee0 /arch/x86
parentee13cbdec4381b5bdb24683b5e7fcc29084c355d (diff)
parentff4878089e1eaeac79d57878ad4ea32910fb4037 (diff)
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/x86')
-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 a198b7c87a12..ba390d731175 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -964,7 +964,7 @@ fs_initcall(hpet_late_init);
964 964
965void hpet_disable(void) 965void hpet_disable(void)
966{ 966{
967 if (is_hpet_capable()) { 967 if (is_hpet_capable() && hpet_virt_address) {
968 unsigned int cfg = hpet_readl(HPET_CFG); 968 unsigned int cfg = hpet_readl(HPET_CFG);
969 969
970 if (hpet_legacy_int_enabled) { 970 if (hpet_legacy_int_enabled) {
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 7c9f02c130f3..cafa7c80ac95 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -276,16 +276,6 @@ static struct sys_device device_i8259A = {
276 .cls = &i8259_sysdev_class, 276 .cls = &i8259_sysdev_class,
277}; 277};
278 278
279static int __init i8259A_init_sysfs(void)
280{
281 int error = sysdev_class_register(&i8259_sysdev_class);
282 if (!error)
283 error = sysdev_register(&device_i8259A);
284 return error;
285}
286
287device_initcall(i8259A_init_sysfs);
288
289static void mask_8259A(void) 279static void mask_8259A(void)
290{ 280{
291 unsigned long flags; 281 unsigned long flags;
@@ -407,3 +397,18 @@ struct legacy_pic default_legacy_pic = {
407}; 397};
408 398
409struct legacy_pic *legacy_pic = &default_legacy_pic; 399struct legacy_pic *legacy_pic = &default_legacy_pic;
400
401static int __init i8259A_init_sysfs(void)
402{
403 int error;
404
405 if (legacy_pic != &default_legacy_pic)
406 return 0;
407
408 error = sysdev_class_register(&i8259_sysdev_class);
409 if (!error)
410 error = sysdev_register(&device_i8259A);
411 return error;
412}
413
414device_initcall(i8259A_init_sysfs);