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Diffstat (limited to 'include/linux/serio.h')
-rw-r--r--include/linux/serio.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 690aabca8ed..6348e833089 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -18,6 +18,7 @@
#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>
@@ -42,7 +43,7 @@ struct serio {
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 */
@@ -151,17 +152,17 @@ static inline void serio_continue_rx(struct serio *serio)
*/
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);
}