#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 */
}
void serio_unregister_port(struct serio *serio);
+void serio_unregister_child_port(struct serio *serio);
void __serio_unregister_port_delayed(struct serio *serio, struct module *owner);
static inline void serio_unregister_port_delayed(struct serio *serio)
{
}
/*
- * Use the following fucntions to manipulate serio's per-port
+ * Use the following functions to manipulate serio's per-port
* driver-specific data.
*/
static inline void *serio_get_drvdata(struct serio *serio)
}
/*
- * Use the following fucntions to protect critical sections in
+ * Use the following functions to protect critical sections in
* driver code from port's interrupt handler
*/
static inline void serio_pause_rx(struct serio *serio)
}
/*
- * Use the following fucntions to pin serio's driver in process context
+ * Use the following functions to pin serio's driver in process context
*/
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)
+{
+ mutex_lock(&serio->drv_mutex);
}
static inline void serio_unpin_driver(struct serio *serio)
{
- up(&serio->drv_sem);
+ mutex_unlock(&serio->drv_mutex);
}