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path: root/drivers/acpi/event.c
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Diffstat (limited to 'drivers/acpi/event.c')
-rw-r--r--drivers/acpi/event.c76
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);