Signed-off-by: Arve Hjønnevåg <arve@xxxxxxxxxxx>--- kernel/power/Kconfig | 19 ++ kernel/power/Makefile | 1 + kernel/power/power.h | 7 + kernel/power/wakelock.c | 598 +++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 625 insertions(+), 0 deletions(-) create mode 100644 kernel/power/wakelock.c
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfigindex 23bd4da..6e3da6e 100644--- a/kernel/power/Kconfig+++ b/kernel/power/Kconfig@@ -116,6 +116,25 @@ config SUSPEND_FREEZER Turning OFF this setting is NOT recommended! If in doubt, say Y. +config HAS_WAKELOCK+ bool++config WAKELOCK+ bool "Wake lock"+ depends on PM && RTC_CLASS+ default n+ select HAS_WAKELOCK+ ---help---+ Enable wakelocks. When user space request a sleep state the+ sleep request will be delayed until no wake locks are held.++config WAKELOCK_STAT+ bool "Wake lock stats"+ depends on WAKELOCK+ default y+ ---help---+ Report wake lock stats in /proc/wakelocks+ config HIBERNATION bool "Hibernation (aka 'suspend to disk')" depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLEdiff --git a/kernel/power/Makefile b/kernel/power/Makefileindex 597823b..401ddfe 100644--- a/kernel/power/Makefile+++ b/kernel/power/Makefile@@ -5,6 +5,7 @@ endif obj-y := main.o obj-$(CONFIG_PM_SLEEP) += process.o console.o+obj-$(CONFIG_WAKELOCK) += wakelock.o obj-$(CONFIG_HIBERNATION) += swsusp.o disk.o snapshot.o swap.o user.o obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.odiff --git a/kernel/power/power.h b/kernel/power/power.hindex 46b5ec7..1527174 100644--- a/kernel/power/power.h+++ b/kernel/power/power.h@@ -223,3 +223,10 @@ static inline void suspend_thaw_processes(void) { } #endif++#ifdef CONFIG_WAKELOCK+/* kernel/power/wakelock.c */+extern struct workqueue_struct *suspend_work_queue;+extern struct wake_lock main_wake_lock;+extern suspend_state_t requested_suspend_state;+#endifdiff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.cnew file mode 100644index 0000000..c9e22f9--- /dev/null+++ b/kernel/power/wakelock.c@@ -0,0 +1,598 @@+/* kernel/power/wakelock.c+ *+ * Copyright (C) 2005-2008 Google, Inc.+ *+ * This software is licensed under the terms of the GNU General Public+ * License version 2, as published by the Free Software Foundation, and+ * may be copied, distributed, and modified under those terms.+ *+ * This program is distributed in the hope that it will be useful,+ * but WITHOUT ANY WARRANTY; without even the implied warranty of+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ * GNU General Public License for more details.+ *+ */++#include <linux/module.h>+#include <linux/platform_device.h>+#include <linux/rtc.h>+#include <linux/suspend.h>+#include <linux/syscalls.h> /* sys_sync */+#include <linux/wakelock.h>+#ifdef CONFIG_WAKELOCK_STAT+#include <linux/proc_fs.h>+#endif+#include "power.h"++enum {+ DEBUG_EXIT_SUSPEND = 1U << 0,+ DEBUG_WAKEUP = 1U << 1,+ DEBUG_SUSPEND = 1U << 2,+ DEBUG_EXPIRE = 1U << 3,+ DEBUG_WAKE_LOCK = 1U << 4,+};+static int debug_mask = DEBUG_EXIT_SUSPEND | DEBUG_WAKEUP;+module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);++#define WAKE_LOCK_TYPE_MASK (0x0f)+#define WAKE_LOCK_INITIALIZED (1U << 8)+#define WAKE_LOCK_ACTIVE (1U << 9)+#define WAKE_LOCK_AUTO_EXPIRE (1U << 10)+#define WAKE_LOCK_PREVENTING_SUSPEND (1U << 11)++static DEFINE_SPINLOCK(list_lock);+static LIST_HEAD(inactive_locks);+static struct list_head active_wake_locks[WAKE_LOCK_TYPE_COUNT];+static int current_event_num;+struct workqueue_struct *suspend_work_queue;+struct wake_lock main_wake_lock;+suspend_state_t requested_suspend_state = PM_SUSPEND_MEM;+static struct wake_lock unknown_wakeup;++#ifdef CONFIG_WAKELOCK_STAT+static struct wake_lock deleted_wake_locks;+static ktime_t last_sleep_time_update;+static int wait_for_wakeup;++int get_expired_time(struct wake_lock *lock, ktime_t *expire_time)+{+ struct timespec ts;+ struct timespec kt;+ struct timespec tomono;+ struct timespec delta;+ unsigned long seq;+ long timeout;++ if (!(lock->flags & WAKE_LOCK_AUTO_EXPIRE))+ return 0;+ do {+ seq = read_seqbegin(&xtime_lock);+ timeout = lock->expires - jiffies;+ if (timeout > 0)+ return 0;+ kt = current_kernel_time();+ tomono = wall_to_monotonic;+ } while (read_seqretry(&xtime_lock, seq));+ jiffies_to_timespec(-timeout, &delta);+ set_normalized_timespec(&ts, kt.tv_sec + tomono.tv_sec - delta.tv_sec,+ kt.tv_nsec + tomono.tv_nsec - delta.tv_nsec);+ *expire_time = timespec_to_ktime(ts);+ return 1;+}+++static int print_lock_stat(char *buf, struct wake_lock *lock)+{+ int lock_count = lock->stat.count;+ int expire_count = lock->stat.expire_count;+ ktime_t active_time = ktime_set(0, 0);+ ktime_t total_time = lock->stat.total_time;+ ktime_t max_time = lock->stat.max_time;+ ktime_t prevent_suspend_time = lock->stat.prevent_suspend_time;+ if (lock->flags & WAKE_LOCK_ACTIVE) {+ ktime_t now, add_time;+ int expired = get_expired_time(lock, &now);+ if (!expired)+ now = ktime_get();+ add_time = ktime_sub(now, lock->stat.last_time);+ lock_count++;+ if (!expired)+ active_time = add_time;+ else+ expire_count++;+ total_time = ktime_add(total_time, add_time);+ if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND)+ prevent_suspend_time = ktime_add(prevent_suspend_time,+ ktime_sub(now, last_sleep_time_update));+ if (add_time.tv64 > max_time.tv64)+ max_time = add_time;+ }++ return sprintf(buf, "\"%s\"\t%d\t%d\t%d\t%lld\t%lld\t%lld\t%lld\t"+ "%lld\n", lock->name, lock_count, expire_count,+ lock->stat.wakeup_count, ktime_to_ns(active_time),+ ktime_to_ns(total_time),+ ktime_to_ns(prevent_suspend_time), ktime_to_ns(max_time),+ ktime_to_ns(lock->stat.last_time));+}+++static int wakelocks_read_proc(char *page, char **start, off_t off,+ int count, int *eof, void *data)+{+ unsigned long irqflags;+ struct wake_lock *lock;+ int len = 0;+ char *p = page;+ int type;++ spin_lock_irqsave(&list_lock, irqflags);++ p += sprintf(p, "name\tcount\texpire_count\twake_count\tactive_since"+ "\ttotal_time\tsleep_time\tmax_time\tlast_change\n");+ list_for_each_entry(lock, &inactive_locks, link) {+ p += print_lock_stat(p, lock);+ }+ for (type = 0; type < WAKE_LOCK_TYPE_COUNT; type++) {+ list_for_each_entry(lock, &active_wake_locks[type], link)+ p += print_lock_stat(p, lock);+ }+ spin_unlock_irqrestore(&list_lock, irqflags);++ *start = page + off;++ len = p - page;+ if (len > off)+ len -= off;+ else+ len = 0;++ return len < count ? len : count;+}++static void wake_unlock_stat_locked(struct wake_lock *lock, int expired)+{+ ktime_t duration;+ ktime_t now;+ if (!(lock->flags & WAKE_LOCK_ACTIVE))+ return;+ if (get_expired_time(lock, &now))+ expired = 1;+ else+ now = ktime_get();+ lock->stat.count++;+ if (expired)+ lock->stat.expire_count++;+ duration = ktime_sub(now, lock->stat.last_time);+ lock->stat.total_time = ktime_add(lock->stat.total_time, duration);+ if (ktime_to_ns(duration) > ktime_to_ns(lock->stat.max_time))+ lock->stat.max_time = duration;+ lock->stat.last_time = ktime_get();+ if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) {+ duration = ktime_sub(now, last_sleep_time_update);+ lock->stat.prevent_suspend_time = ktime_add(+ lock->stat.prevent_suspend_time, duration);+ lock->flags &= ~WAKE_LOCK_PREVENTING_SUSPEND;+ }+}++static void update_sleep_wait_stats_locked(int done)+{+ struct wake_lock *lock;+ ktime_t now, etime, elapsed, add;+ int expired;++ now = ktime_get();+ elapsed = ktime_sub(now, last_sleep_time_update);+ list_for_each_entry(lock, &active_wake_locks[WAKE_LOCK_SUSPEND], link) {+ expired = get_expired_time(lock, &etime);+ if (lock->flags & WAKE_LOCK_PREVENTING_SUSPEND) {+ if (expired)+ add = ktime_sub(etime, last_sleep_time_update);+ else+ add = elapsed;+ lock->stat.prevent_suspend_time = ktime_add(+ lock->stat.prevent_suspend_time, add);+ }+ if (done || expired)+ lock->flags &= ~WAKE_LOCK_PREVENTING_SUSPEND;+ else+ lock->flags |= WAKE_LOCK_PREVENTING_SUSPEND;+ }+ last_sleep_time_update = now;+}+#endif+++static void expire_wake_lock(struct wake_lock *lock)+{+#ifdef CONFIG_WAKELOCK_STAT+ wake_unlock_stat_locked(lock, 1);+#endif+ lock->flags &= ~(WAKE_LOCK_ACTIVE | WAKE_LOCK_AUTO_EXPIRE);+ list_del(&lock->link);+ list_add(&lock->link, &inactive_locks);+ if (debug_mask & (DEBUG_WAKE_LOCK | DEBUG_EXPIRE))+ pr_info("expired wake lock %s\n", lock->name);+}++static void print_active_locks(int type)+{+ unsigned long irqflags;+ struct wake_lock *lock;++ BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);+ spin_lock_irqsave(&list_lock, irqflags);+ list_for_each_entry(lock, &active_wake_locks[type], link) {+ if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) {+ long timeout = lock->expires - jiffies;+ if (timeout <= 0)+ pr_info("wake lock %s, expired\n", lock->name);+ else+ pr_info("active wake lock %s, time left %ld\n",+ lock->name, timeout);+ } else+ pr_info("active wake lock %s\n", lock->name);+ }+ spin_unlock_irqrestore(&list_lock, irqflags);+}++static long has_wake_lock_locked(int type)+{+ struct wake_lock *lock, *n;+ long max_timeout = 0;++ BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);+ list_for_each_entry_safe(lock, n, &active_wake_locks[type], link) {+ if (lock->flags & WAKE_LOCK_AUTO_EXPIRE) {+ long timeout = lock->expires - jiffies;+ if (timeout <= 0)+ expire_wake_lock(lock);+ else if (timeout > max_timeout)+ max_timeout = timeout;+ } else+ return -1;+ }+ return max_timeout;+}++long has_wake_lock(int type)+{+ long ret;+ unsigned long irqflags;+ spin_lock_irqsave(&list_lock, irqflags);+ ret = has_wake_lock_locked(type);+ spin_unlock_irqrestore(&list_lock, irqflags);+ return ret;+}++static void suspend(struct work_struct *work)+{+ int ret;+ int entry_event_num;++ if (has_wake_lock(WAKE_LOCK_SUSPEND)) {+ if (debug_mask & DEBUG_SUSPEND)+ pr_info("suspend: abort suspend\n");+ return;+ }++ entry_event_num = current_event_num;+ sys_sync();+ if (debug_mask & DEBUG_SUSPEND)+ pr_info("suspend: enter suspend\n");+ ret = pm_suspend(requested_suspend_state);+ if (debug_mask & DEBUG_EXIT_SUSPEND) {+ struct timespec ts;+ struct rtc_time tm;+ getnstimeofday(&ts);+ rtc_time_to_tm(ts.tv_sec, &tm);+ pr_info("suspend: exit suspend, ret = %d "+ "(%d-%02d-%02d %02d:%02d:%02d.%09lu UTC)\n", ret,+ tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,+ tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec);+ }+ if (current_event_num == entry_event_num) {+ if (debug_mask & DEBUG_SUSPEND)+ pr_info("suspend: pm_suspend returned with no event\n");+ wake_lock_timeout(&unknown_wakeup, HZ / 2);+ }+}+static DECLARE_WORK(suspend_work, suspend);++static void expire_wake_locks(unsigned long data)+{+ long has_lock;+ unsigned long irqflags;+ if (debug_mask & DEBUG_EXPIRE)+ pr_info("expire_wake_locks: start\n");+ if (debug_mask & DEBUG_SUSPEND)+ print_active_locks(WAKE_LOCK_SUSPEND);+ spin_lock_irqsave(&list_lock, irqflags);+ has_lock = has_wake_lock_locked(WAKE_LOCK_SUSPEND);+ if (debug_mask & DEBUG_EXPIRE)+ pr_info("expire_wake_locks: done, has_lock %ld\n", has_lock);+ if (has_lock == 0)+ queue_work(suspend_work_queue, &suspend_work);+ spin_unlock_irqrestore(&list_lock, irqflags);+}+static DEFINE_TIMER(expire_timer, expire_wake_locks, 0, 0);++static int power_suspend_late(struct platform_device *pdev, pm_message_t state)+{+ int ret = has_wake_lock(WAKE_LOCK_SUSPEND) ? -EAGAIN : 0;+#ifdef CONFIG_WAKELOCK_STAT+ wait_for_wakeup = 1;+#endif+ if (debug_mask & DEBUG_SUSPEND)+ pr_info("power_suspend_late return %d\n", ret);+ return ret;+}++static struct platform_driver power_driver = {+ .driver.name = "power",+ .suspend_late = power_suspend_late,+};+static struct platform_device power_device = {+ .name = "power",+};++void wake_lock_init(struct wake_lock *lock, int type, const char *name)+{+ unsigned long irqflags = 0;++ if (name)+ lock->name = name;+ BUG_ON(!lock->name);++ if (debug_mask & DEBUG_WAKE_LOCK)+ pr_info("wake_lock_init name=%s\n", lock->name);+#ifdef CONFIG_WAKELOCK_STAT+ lock->stat.count = 0;+ lock->stat.expire_count = 0;+ lock->stat.wakeup_count = 0;+ lock->stat.total_time = ktime_set(0, 0);+ lock->stat.prevent_suspend_time = ktime_set(0, 0);+ lock->stat.max_time = ktime_set(0, 0);+ lock->stat.last_time = ktime_set(0, 0);+#endif+ lock->flags = (type & WAKE_LOCK_TYPE_MASK) | WAKE_LOCK_INITIALIZED;++ INIT_LIST_HEAD(&lock->link);+ spin_lock_irqsave(&list_lock, irqflags);+ list_add(&lock->link, &inactive_locks);+ spin_unlock_irqrestore(&list_lock, irqflags);+}+EXPORT_SYMBOL(wake_lock_init);++void wake_lock_destroy(struct wake_lock *lock)+{+ unsigned long irqflags;+ if (debug_mask & DEBUG_WAKE_LOCK)+ pr_info("wake_lock_destroy name=%s\n", lock->name);+ spin_lock_irqsave(&list_lock, irqflags);+ lock->flags &= ~WAKE_LOCK_INITIALIZED;+#ifdef CONFIG_WAKELOCK_STAT+ if (lock->stat.count) {+ deleted_wake_locks.stat.count += lock->stat.count;+ deleted_wake_locks.stat.expire_count += lock->stat.expire_count;+ deleted_wake_locks.stat.total_time =+ ktime_add(deleted_wake_locks.stat.total_time,+ lock->stat.total_time);+ deleted_wake_locks.stat.prevent_suspend_time =+ ktime_add(deleted_wake_locks.stat.prevent_suspend_time,+ lock->stat.prevent_suspend_time);+ deleted_wake_locks.stat.max_time =+ ktime_add(deleted_wake_locks.stat.max_time,+ lock->stat.max_time);+ }+#endif+ list_del(&lock->link);+ spin_unlock_irqrestore(&list_lock, irqflags);+}+EXPORT_SYMBOL(wake_lock_destroy);++static void wake_lock_internal(+ struct wake_lock *lock, long timeout, int has_timeout)+{+ int type;+ unsigned long irqflags;+ long expire_in;++ spin_lock_irqsave(&list_lock, irqflags);+ type = lock->flags & WAKE_LOCK_TYPE_MASK;+ BUG_ON(type >= WAKE_LOCK_TYPE_COUNT);+ BUG_ON(!(lock->flags & WAKE_LOCK_INITIALIZED));+#ifdef CONFIG_WAKELOCK_STAT+ if (type == WAKE_LOCK_SUSPEND && wait_for_wakeup) {+ if (debug_mask & DEBUG_WAKEUP)+ pr_info("wakeup wake lock: %s\n", lock->name);+ wait_for_wakeup = 0;+ lock->stat.wakeup_count++;+ }+ if ((lock->flags & WAKE_LOCK_AUTO_EXPIRE) &&+ (long)(lock->expires - jiffies) <= 0) {+ wake_unlock_stat_locked(lock, 0);+ lock->stat.last_time = ktime_get();+ }+#endif+ if (!(lock->flags & WAKE_LOCK_ACTIVE)) {+ lock->flags |= WAKE_LOCK_ACTIVE;+#ifdef CONFIG_WAKELOCK_STAT+ lock->stat.last_time = ktime_get();+#endif+ }+ list_del(&lock->link);+ if (has_timeout) {+ if (debug_mask & DEBUG_WAKE_LOCK)+ pr_info("wake_lock: %s, type %d, timeout %ld.%03lu\n",+ lock->name, type, timeout / HZ,+ (timeout % HZ) * MSEC_PER_SEC / HZ);+ lock->expires = jiffies + timeout;+ lock->flags |= WAKE_LOCK_AUTO_EXPIRE;+ list_add_tail(&lock->link, &active_wake_locks[type]);+ } else {+ if (debug_mask & DEBUG_WAKE_LOCK)+ pr_info("wake_lock: %s, type %d\n", lock->name, type);+ lock->expires = LONG_MAX;+ lock->flags &= ~WAKE_LOCK_AUTO_EXPIRE;+ list_add(&lock->link, &active_wake_locks[type]);+ }+ if (type == WAKE_LOCK_SUSPEND) {+ current_event_num++;+#ifdef CONFIG_WAKELOCK_STAT+ if (lock == &main_wake_lock)+ update_sleep_wait_stats_locked(1);+ else if (!wake_lock_active(&main_wake_lock))+ update_sleep_wait_stats_locked(0);+#endif+ if (has_timeout)+ expire_in = has_wake_lock_locked(type);+ else+ expire_in = -1;+ if (expire_in > 0) {+ if (debug_mask & DEBUG_EXPIRE)+ pr_info("wake_lock: %s, start expire timer, "+ "%ld\n", lock->name, expire_in);+ mod_timer(&expire_timer, jiffies + expire_in);+ } else {+ if (del_timer(&expire_timer))+ if (debug_mask & DEBUG_EXPIRE)+ pr_info("wake_lock: %s, stop expire "+ "timer\n", lock->name);+ if (expire_in == 0)+ queue_work(suspend_work_queue, &suspend_work);+ }+ }+ spin_unlock_irqrestore(&list_lock, irqflags);+}++void wake_lock(struct wake_lock *lock)+{+ wake_lock_internal(lock, 0, 0);+}+EXPORT_SYMBOL(wake_lock);++void wake_lock_timeout(struct wake_lock *lock, long timeout)+{+ wake_lock_internal(lock, timeout, 1);+}+EXPORT_SYMBOL(wake_lock_timeout);++void wake_unlock(struct wake_lock *lock)+{+ int type;+ unsigned long irqflags;+ spin_lock_irqsave(&list_lock, irqflags);+ type = lock->flags & WAKE_LOCK_TYPE_MASK;+#ifdef CONFIG_WAKELOCK_STAT+ wake_unlock_stat_locked(lock, 0);+#endif+ if (debug_mask & DEBUG_WAKE_LOCK)+ pr_info("wake_unlock: %s\n", lock->name);+ lock->flags &= ~(WAKE_LOCK_ACTIVE | WAKE_LOCK_AUTO_EXPIRE);+ list_del(&lock->link);+ list_add(&lock->link, &inactive_locks);+ if (type == WAKE_LOCK_SUSPEND) {+ long has_lock = has_wake_lock_locked(type);+ if (has_lock > 0) {+ if (debug_mask & DEBUG_EXPIRE)+ pr_info("wake_unlock: %s, start expire timer, "+ "%ld\n", lock->name, has_lock);+ mod_timer(&expire_timer, jiffies + has_lock);+ } else {+ if (del_timer(&expire_timer))+ if (debug_mask & DEBUG_EXPIRE)+ pr_info("wake_unlock: %s, stop expire "+ "timer\n", lock->name);+ if (has_lock == 0)+ queue_work(suspend_work_queue, &suspend_work);+ }+ if (lock == &main_wake_lock) {+ if (debug_mask & DEBUG_SUSPEND)+ print_active_locks(WAKE_LOCK_SUSPEND);+#ifdef CONFIG_WAKELOCK_STAT+ update_sleep_wait_stats_locked(0);+#endif+ }+ }+ spin_unlock_irqrestore(&list_lock, irqflags);+}+EXPORT_SYMBOL(wake_unlock);++int wake_lock_active(struct wake_lock *lock)+{+ return !!(lock->flags & WAKE_LOCK_ACTIVE);+}+EXPORT_SYMBOL(wake_lock_active);++static int __init wakelocks_init(void)+{+ int ret;+ int i;++ for (i = 0; i < ARRAY_SIZE(active_wake_locks); i++)+ INIT_LIST_HEAD(&active_wake_locks[i]);++#ifdef CONFIG_WAKELOCK_STAT+ wake_lock_init(&deleted_wake_locks, WAKE_LOCK_SUSPEND,+ "deleted_wake_locks");+#endif+ wake_lock_init(&main_wake_lock, WAKE_LOCK_SUSPEND, "main");+ wake_lock(&main_wake_lock);+ wake_lock_init(&unknown_wakeup, WAKE_LOCK_SUSPEND, "unknown_wakeups");++ ret = platform_device_register(&power_device);+ if (ret) {+ pr_err("wakelocks_init: platform_device_register failed\n");+ goto err_platform_device_register;+ }+ ret = platform_driver_register(&power_driver);+ if (ret) {+ pr_err("wakelocks_init: platform_driver_register failed\n");+ goto err_platform_driver_register;+ }++ suspend_work_queue = create_singlethread_workqueue("suspend");+ if (suspend_work_queue == NULL) {+ ret = -ENOMEM;+ goto err_suspend_work_queue;+ }++#ifdef CONFIG_WAKELOCK_STAT+ create_proc_read_entry("wakelocks", S_IRUGO, NULL,+ wakelocks_read_proc, NULL);+#endif++ return 0;++err_suspend_work_queue:+ platform_driver_unregister(&power_driver);+err_platform_driver_register:+ platform_device_unregister(&power_device);+err_platform_device_register:+ wake_lock_destroy(&unknown_wakeup);+ wake_lock_destroy(&main_wake_lock);+#ifdef CONFIG_WAKELOCK_STAT+ wake_lock_destroy(&deleted_wake_locks);+#endif+ return ret;+}++static void __exit wakelocks_exit(void)+{+#ifdef CONFIG_WAKELOCK_STAT+ remove_proc_entry("wakelocks", NULL);+#endif+ destroy_workqueue(suspend_work_queue);+ platform_driver_unregister(&power_driver);+ platform_device_unregister(&power_device);+ wake_lock_destroy(&unknown_wakeup);+ wake_lock_destroy(&main_wake_lock);+#ifdef CONFIG_WAKELOCK_STAT+ wake_lock_destroy(&deleted_wake_locks);+#endif+}++core_initcall(wakelocks_init);+module_exit(wakelocks_exit);-- 1.6.1
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