1 files changed, 9 insertions, 24 deletions

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 966673f44141..fabf01eff771 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -24,7 +24,7 @@
 #include <linux/ftrace.h>
 #include <linux/ioport.h>
 #include <linux/module.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/delay.h>
 #include <linux/timex.h>
 #include <linux/dmar.h>
@@ -2046,7 +2046,7 @@ static struct {
         unsigned int apic_thmr;
 } apic_pm_state;
 
-static int lapic_suspend(struct sys_device *dev, pm_message_t state)
+static int lapic_suspend(void)
 {
         unsigned long flags;
         int maxlvt;
@@ -2084,23 +2084,21 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state)
         return 0;
 }
 
-static int lapic_resume(struct sys_device *dev)
+static void lapic_resume(void)
 {
         unsigned int l, h;
         unsigned long flags;
-        int maxlvt;
-        int ret = 0;
+        int maxlvt, ret;
         struct IO_APIC_route_entry **ioapic_entries = NULL;
 
         if (!apic_pm_state.active)
-                return 0;
+                return;
 
         local_irq_save(flags);
         if (intr_remapping_enabled) {
                 ioapic_entries = alloc_ioapic_entries();
                 if (!ioapic_entries) {
                         WARN(1, "Alloc ioapic_entries in lapic resume failed.");
-                        ret = -ENOMEM;
                         goto restore;
                 }
 
@@ -2162,8 +2160,6 @@ static int lapic_resume(struct sys_device *dev)
         }
 restore:
         local_irq_restore(flags);
-
-        return ret;
 }
 
 /*
@@ -2171,17 +2167,11 @@ restore:
  * are needed on every CPU up until machine_halt/restart/poweroff.
  */
 
-static struct sysdev_class lapic_sysclass = {
-        .name           = "lapic",
+static struct syscore_ops lapic_syscore_ops = {
         .resume         = lapic_resume,
         .suspend        = lapic_suspend,
 };
 
-static struct sys_device device_lapic = {
-        .id     = 0,
-        .cls    = &lapic_sysclass,
-};
-
 static void __cpuinit apic_pm_activate(void)
 {
         apic_pm_state.active = 1;
@@ -2189,16 +2179,11 @@ static void __cpuinit apic_pm_activate(void)
 
 static int __init init_lapic_sysfs(void)
 {
-        int error;
-
-        if (!cpu_has_apic)
-                return 0;
         /* XXX: remove suspend/resume procs if !apic_pm_state.active? */
+        if (cpu_has_apic)
+                register_syscore_ops(&lapic_syscore_ops);
 
-        error = sysdev_class_register(&lapic_sysclass);
-        if (!error)
-                error = sysdev_register(&device_lapic);
-        return error;
+        return 0;
 }
 
 /* local apic needs to resume before other devices access its registers. */