diff options
Diffstat (limited to 'drivers/acpi/event.c')
-rw-r--r-- | drivers/acpi/event.c | 76 |
1 files changed, 35 insertions, 41 deletions
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index 43c49f66a328..bfa8b76de403 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -13,45 +13,40 @@ #include <acpi/acpi_drivers.h> #define _COMPONENT ACPI_SYSTEM_COMPONENT -ACPI_MODULE_NAME ("event") +ACPI_MODULE_NAME("event") /* Global vars for handling event proc entry */ static DEFINE_SPINLOCK(acpi_system_event_lock); -int event_is_open = 0; -extern struct list_head acpi_bus_event_list; -extern wait_queue_head_t acpi_bus_event_queue; +int event_is_open = 0; +extern struct list_head acpi_bus_event_list; +extern wait_queue_head_t acpi_bus_event_queue; -static int -acpi_system_open_event(struct inode *inode, struct file *file) +static int acpi_system_open_event(struct inode *inode, struct file *file) { - spin_lock_irq (&acpi_system_event_lock); + spin_lock_irq(&acpi_system_event_lock); - if(event_is_open) + if (event_is_open) goto out_busy; event_is_open = 1; - spin_unlock_irq (&acpi_system_event_lock); + spin_unlock_irq(&acpi_system_event_lock); return 0; -out_busy: - spin_unlock_irq (&acpi_system_event_lock); + out_busy: + spin_unlock_irq(&acpi_system_event_lock); return -EBUSY; } static ssize_t -acpi_system_read_event ( - struct file *file, - char __user *buffer, - size_t count, - loff_t *ppos) +acpi_system_read_event(struct file *file, char __user * buffer, size_t count, + loff_t * ppos) { - int result = 0; - struct acpi_bus_event event; - static char str[ACPI_MAX_STRING]; - static int chars_remaining = 0; - static char *ptr; - + int result = 0; + struct acpi_bus_event event; + static char str[ACPI_MAX_STRING]; + static int chars_remaining = 0; + static char *ptr; ACPI_FUNCTION_TRACE("acpi_system_read_event"); @@ -67,10 +62,12 @@ acpi_system_read_event ( return_VALUE(-EIO); } - chars_remaining = sprintf(str, "%s %s %08x %08x\n", - event.device_class?event.device_class:"<unknown>", - event.bus_id?event.bus_id:"<unknown>", - event.type, event.data); + chars_remaining = sprintf(str, "%s %s %08x %08x\n", + event.device_class ? event. + device_class : "<unknown>", + event.bus_id ? event. + bus_id : "<unknown>", event.type, + event.data); ptr = str; } @@ -88,19 +85,15 @@ acpi_system_read_event ( return_VALUE(count); } -static int -acpi_system_close_event(struct inode *inode, struct file *file) +static int acpi_system_close_event(struct inode *inode, struct file *file) { - spin_lock_irq (&acpi_system_event_lock); + spin_lock_irq(&acpi_system_event_lock); event_is_open = 0; - spin_unlock_irq (&acpi_system_event_lock); + spin_unlock_irq(&acpi_system_event_lock); return 0; } -static unsigned int -acpi_system_poll_event( - struct file *file, - poll_table *wait) +static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait) { poll_wait(file, &acpi_bus_event_queue, wait); if (!list_empty(&acpi_bus_event_list)) @@ -109,15 +102,15 @@ acpi_system_poll_event( } static struct file_operations acpi_system_event_ops = { - .open = acpi_system_open_event, - .read = acpi_system_read_event, - .release = acpi_system_close_event, - .poll = acpi_system_poll_event, + .open = acpi_system_open_event, + .read = acpi_system_read_event, + .release = acpi_system_close_event, + .poll = acpi_system_poll_event, }; static int __init acpi_event_init(void) { - struct proc_dir_entry *entry; + struct proc_dir_entry *entry; int error = 0; ACPI_FUNCTION_TRACE("acpi_event_init"); @@ -130,8 +123,9 @@ static int __init acpi_event_init(void) if (entry) entry->proc_fops = &acpi_system_event_ops; else { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' proc fs entry\n","event" )); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Unable to create '%s' proc fs entry\n", + "event")); error = -EFAULT; } return_VALUE(error); |