maxbytes = sizeof(ps2dev->cmdbuf);
}
- down(&ps2dev->cmd_sem);
+ mutex_lock(&ps2dev->cmd_mutex);
serio_pause_rx(ps2dev->serio);
ps2dev->flags = PS2_FLAG_CMD;
wait_event_timeout(ps2dev->wait,
!(ps2dev->flags & PS2_FLAG_CMD),
msecs_to_jiffies(timeout));
- up(&ps2dev->cmd_sem);
+ mutex_unlock(&ps2dev->cmd_mutex);
}
/*
return -1;
}
- down(&ps2dev->cmd_sem);
+ mutex_lock(&ps2dev->cmd_mutex);
serio_pause_rx(ps2dev->serio);
ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0;
ps2dev->flags = 0;
serio_continue_rx(ps2dev->serio);
- up(&ps2dev->cmd_sem);
+ mutex_unlock(&ps2dev->cmd_mutex);
return rc;
}
void ps2_init(struct ps2dev *ps2dev, struct serio *serio)
{
- init_MUTEX(&ps2dev->cmd_sem);
+ mutex_init(&ps2dev->cmd_mutex);
init_waitqueue_head(&ps2dev->wait);
ps2dev->serio = serio;
}
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/kthread.h>
+#include <linux/mutex.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Serio abstraction core");
EXPORT_SYMBOL(serio_reconnect);
/*
- * serio_sem protects entire serio subsystem and is taken every time
+ * serio_mutex protects entire serio subsystem and is taken every time
* serio port or driver registrered or unregistered.
*/
-static DECLARE_MUTEX(serio_sem);
+static DEFINE_MUTEX(serio_mutex);
static LIST_HEAD(serio_list);
{
int retval;
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
retval = drv->connect(serio, drv);
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
return retval;
}
{
int retval = -1;
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
if (serio->drv && serio->drv->reconnect)
retval = serio->drv->reconnect(serio);
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
return retval;
}
static void serio_disconnect_driver(struct serio *serio)
{
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
if (serio->drv)
serio->drv->disconnect(serio);
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
}
static int serio_match_port(const struct serio_device_id *ids, struct serio *serio)
struct serio_event *event;
struct serio_driver *serio_drv;
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
/*
* Note that we handle only one event here to give swsusp
serio_free_event(event);
}
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
/*
struct device_driver *drv;
int retval;
- retval = down_interruptible(&serio_sem);
+ retval = mutex_lock_interruptible(&serio_mutex);
if (retval)
return retval;
retval = -EINVAL;
}
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
return retval;
}
__module_get(THIS_MODULE);
spin_lock_init(&serio->lock);
- init_MUTEX(&serio->drv_sem);
+ mutex_init(&serio->drv_mutex);
device_initialize(&serio->dev);
snprintf(serio->dev.bus_id, sizeof(serio->dev.bus_id),
"serio%ld", (long)atomic_inc_return(&serio_no) - 1);
*/
void serio_unregister_port(struct serio *serio)
{
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
serio_disconnect_port(serio);
serio_destroy_port(serio);
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
/*
*/
void serio_unregister_child_port(struct serio *serio)
{
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
if (serio->child) {
serio_disconnect_port(serio->child);
serio_destroy_port(serio->child);
}
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
/*
* Submits register request to kseriod for subsequent execution.
- * Can be used when it is not obvious whether the serio_sem is
+ * Can be used when it is not obvious whether the serio_mutex is
* taken or not and when delayed execution is feasible.
*/
void __serio_unregister_port_delayed(struct serio *serio, struct module *owner)
{
struct serio *serio;
- down(&serio_sem);
+ mutex_lock(&serio_mutex);
drv->manual_bind = 1; /* so serio_find_driver ignores it */
start_over:
}
driver_unregister(&drv->driver);
- up(&serio_sem);
+ mutex_unlock(&serio_mutex);
}
static void serio_set_drv(struct serio *serio, struct serio_driver *drv)
return 0;
}
-/* called from serio_driver->connect/disconnect methods under serio_sem */
+/* called from serio_driver->connect/disconnect methods under serio_mutex */
int serio_open(struct serio *serio, struct serio_driver *drv)
{
serio_set_drv(serio, drv);
return 0;
}
-/* called from serio_driver->connect/disconnect methods under serio_sem */
+/* called from serio_driver->connect/disconnect methods under serio_mutex */
void serio_close(struct serio *serio)
{
if (serio->close)
#include <linux/devfs_fs_kernel.h>
#include <linux/miscdevice.h>
#include <linux/wait.h>
+#include <linux/mutex.h>
#define DRIVER_DESC "Raw serio driver"
struct list_head node;
};
-static DECLARE_MUTEX(serio_raw_sem);
+static DEFINE_MUTEX(serio_raw_mutex);
static LIST_HEAD(serio_raw_list);
static unsigned int serio_raw_no;
struct serio_raw_list *list;
int retval = 0;
- retval = down_interruptible(&serio_raw_sem);
+ retval = mutex_lock_interruptible(&serio_raw_mutex);
if (retval)
return retval;
list_add_tail(&list->node, &serio_raw->list);
out:
- up(&serio_raw_sem);
+ mutex_unlock(&serio_raw_mutex);
return retval;
}
struct serio_raw_list *list = file->private_data;
struct serio_raw *serio_raw = list->serio_raw;
- down(&serio_raw_sem);
+ mutex_lock(&serio_raw_mutex);
serio_raw_fasync(-1, file, 0);
serio_raw_cleanup(serio_raw);
- up(&serio_raw_sem);
+ mutex_unlock(&serio_raw_mutex);
return 0;
}
int retval;
unsigned char c;
- retval = down_interruptible(&serio_raw_sem);
+ retval = mutex_lock_interruptible(&serio_raw_mutex);
if (retval)
return retval;
};
out:
- up(&serio_raw_sem);
+ mutex_unlock(&serio_raw_mutex);
return written;
}
return -ENOMEM;
}
- down(&serio_raw_sem);
+ mutex_lock(&serio_raw_mutex);
memset(serio_raw, 0, sizeof(struct serio_raw));
snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);
serio_set_drvdata(serio, NULL);
kfree(serio_raw);
out:
- up(&serio_raw_sem);
+ mutex_unlock(&serio_raw_mutex);
return err;
}
{
struct serio_raw *serio_raw;
- down(&serio_raw_sem);
+ mutex_lock(&serio_raw_mutex);
serio_raw = serio_get_drvdata(serio);
if (!serio_raw_cleanup(serio_raw))
wake_up_interruptible(&serio_raw->wait);
- up(&serio_raw_sem);
+ mutex_unlock(&serio_raw_mutex);
}
static struct serio_device_id serio_raw_serio_ids[] = {
struct serio *serio;
/* Ensures that only one command is executing at a time */
- struct semaphore cmd_sem;
+ struct mutex cmd_mutex;
/* Used to signal completion from interrupt handler */
wait_queue_head_t wait;
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
struct serio *parent, *child;
struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */
- struct semaphore drv_sem; /* protects serio->drv so attributes can pin driver */
+ struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */
struct device dev;
unsigned int registered; /* port has been fully registered with driver core */
*/
static inline int serio_pin_driver(struct serio *serio)
{
- return down_interruptible(&serio->drv_sem);
+ return mutex_lock_interruptible(&serio->drv_mutex);
}
static inline void serio_pin_driver_uninterruptible(struct serio *serio)
{
- down(&serio->drv_sem);
+ mutex_lock(&serio->drv_mutex);
}
static inline void serio_unpin_driver(struct serio *serio)
{
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
}
projects / linux-2.6 / commitdiff