diff options
| -rw-r--r-- | arch/arm/kernel/apm.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c index 845af0bc110..a11fb9a40c0 100644 --- a/arch/arm/kernel/apm.c +++ b/arch/arm/kernel/apm.c @@ -102,7 +102,7 @@ static DECLARE_WAIT_QUEUE_HEAD(kapmd_wait); static DEFINE_SPINLOCK(kapmd_queue_lock); static struct apm_queue kapmd_queue; -static DECLARE_MUTEX(state_lock); +static DEFINE_MUTEX(state_lock); static const char driver_version[] = "1.13"; /* no spaces */ @@ -176,7 +176,7 @@ static int queue_suspend_event(apm_event_t event, struct apm_user *sender) struct apm_user *as; int ret = 1; - down(&state_lock); + mutex_lock(&state_lock); down_read(&user_list_lock); /* @@ -201,7 +201,7 @@ static int queue_suspend_event(apm_event_t event, struct apm_user *sender) } out: up_read(&user_list_lock); - up(&state_lock); + mutex_unlock(&state_lock); wake_up_interruptible(&apm_waitqueue); return ret; } @@ -220,7 +220,7 @@ static void apm_suspend(void) /* * Finally, wake up anyone who is sleeping on the suspend. */ - down(&state_lock); + mutex_lock(&state_lock); down_read(&user_list_lock); list_for_each_entry(as, &apm_user_list, list) { if (as->suspend_state == SUSPEND_WAIT || @@ -230,7 +230,7 @@ static void apm_suspend(void) } } up_read(&user_list_lock); - up(&state_lock); + mutex_unlock(&state_lock); wake_up(&apm_suspend_waitqueue); } @@ -256,11 +256,11 @@ static ssize_t apm_read(struct file *fp, char __user *buf, size_t count, loff_t if (copy_to_user(buf, &event, sizeof(event))) break; - down(&state_lock); + mutex_lock(&state_lock); if (as->suspend_state == SUSPEND_PENDING && (event == APM_SYS_SUSPEND || event == APM_USER_SUSPEND)) as->suspend_state = SUSPEND_READ; - up(&state_lock); + mutex_unlock(&state_lock); buf += sizeof(event); i -= sizeof(event); @@ -302,7 +302,7 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) switch (cmd) { case APM_IOC_SUSPEND: - down(&state_lock); + mutex_lock(&state_lock); as->suspend_result = -EINTR; @@ -317,7 +317,7 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) as->suspend_state = SUSPEND_ACKED; suspends_pending--; pending = suspends_pending == 0; - up(&state_lock); + mutex_unlock(&state_lock); /* * If there are no further acknowledges required, @@ -341,7 +341,7 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) as->suspend_state == SUSPEND_DONE); } else { as->suspend_state = SUSPEND_WAIT; - up(&state_lock); + mutex_unlock(&state_lock); /* * Otherwise it is a request to suspend the system. @@ -379,10 +379,10 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) current->flags = flags; - down(&state_lock); + mutex_lock(&state_lock); err = as->suspend_result; as->suspend_state = SUSPEND_NONE; - up(&state_lock); + mutex_unlock(&state_lock); break; } @@ -406,12 +406,12 @@ static int apm_release(struct inode * inode, struct file * filp) * need to balance suspends_pending, which means the * possibility of sleeping. */ - down(&state_lock); + mutex_lock(&state_lock); if (as->suspend_state != SUSPEND_NONE) { suspends_pending -= 1; pending = suspends_pending == 0; } - up(&state_lock); + mutex_unlock(&state_lock); if (pending) apm_suspend(); |