1 files changed, 8 insertions, 9 deletions

diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c
index 20563e52c622..2d39f55d29a8 100644
--- a/arch/i386/kernel/acpi/cstate.c
+++ b/arch/i386/kernel/acpi/cstate.c
@@ -11,6 +11,7 @@
 #include <linux/init.h>
 #include <linux/acpi.h>
 #include <linux/cpu.h>
+#include <linux/sched.h>
 
 #include <acpi/processor.h>
 #include <asm/acpi.h>
@@ -46,13 +47,13 @@ EXPORT_SYMBOL(acpi_processor_power_init_bm_check);
 
 /* The code below handles cstate entry with monitor-mwait pair on Intel*/
 
-struct cstate_entry_s {
+struct cstate_entry {
         struct {
                 unsigned int eax;
                 unsigned int ecx;
         } states[ACPI_PROCESSOR_MAX_POWER];
 };
-static struct cstate_entry_s *cpu_cstate_entry; /* per CPU ptr */
+static struct cstate_entry *cpu_cstate_entry;   /* per CPU ptr */
 
 static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 
@@ -70,7 +71,7 @@ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 int acpi_processor_ffh_cstate_probe(unsigned int cpu,
                 struct acpi_processor_cx *cx, struct acpi_power_register *reg)
 {
-        struct cstate_entry_s *percpu_entry;
+        struct cstate_entry *percpu_entry;
         struct cpuinfo_x86 *c = cpu_data + cpu;
 
         cpumask_t saved_mask;
@@ -135,7 +136,7 @@ EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe);
 void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx)
 {
         unsigned int cpu = smp_processor_id();
-        struct cstate_entry_s *percpu_entry;
+        struct cstate_entry *percpu_entry;
 
         percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu);
         mwait_idle_with_hints(percpu_entry->states[cx->index].eax,
@@ -149,16 +150,14 @@ static int __init ffh_cstate_init(void)
         if (c->x86_vendor != X86_VENDOR_INTEL)
                 return -1;
 
-        cpu_cstate_entry = alloc_percpu(struct cstate_entry_s);
+        cpu_cstate_entry = alloc_percpu(struct cstate_entry);
         return 0;
 }
 
 static void __exit ffh_cstate_exit(void)
 {
-        if (cpu_cstate_entry) {
-                free_percpu(cpu_cstate_entry);
-                cpu_cstate_entry = NULL;
-        }
+        free_percpu(cpu_cstate_entry);
+        cpu_cstate_entry = NULL;
 }
 
 arch_initcall(ffh_cstate_init);