Input: uinput - semaphore to mutex conversion

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 546ed9b..d723e9a 100644 (file)
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -194,7 +194,7 @@ static int uinput_open(struct inode *inode, struct file *file)
        if (!newdev)
                return -ENOMEM;
 
-       init_MUTEX(&newdev->sem);
+       mutex_init(&newdev->mutex);
        spin_lock_init(&newdev->requests_lock);
        init_waitqueue_head(&newdev->requests_waitq);
        init_waitqueue_head(&newdev->waitq);
@@ -340,7 +340,7 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t
        struct uinput_device *udev = file->private_data;
        int retval;
 
-       retval = down_interruptible(&udev->sem);
+       retval = mutex_lock_interruptible(&udev->mutex);
        if (retval)
                return retval;
 
@@ -348,7 +348,7 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t
                        uinput_inject_event(udev, buffer, count) :
                        uinput_setup_device(udev, buffer, count);
 
-       up(&udev->sem);
+       mutex_unlock(&udev->mutex);
 
        return retval;
 }
@@ -369,7 +369,7 @@ static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count,
        if (retval)
                return retval;
 
-       retval = down_interruptible(&udev->sem);
+       retval = mutex_lock_interruptible(&udev->mutex);
        if (retval)
                return retval;
 
@@ -388,7 +388,7 @@ static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count,
        }
 
  out:
-       up(&udev->sem);
+       mutex_unlock(&udev->mutex);
 
        return retval;
 }
@@ -439,7 +439,7 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
        udev = file->private_data;
 
-       retval = down_interruptible(&udev->sem);
+       retval = mutex_lock_interruptible(&udev->mutex);
        if (retval)
                return retval;
 
@@ -589,7 +589,7 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
        }
 
  out:
-       up(&udev->sem);
+       mutex_unlock(&udev->mutex);
        return retval;
 }
 

diff --git a/include/linux/uinput.h b/include/linux/uinput.h
index 0ff7ca6..7168302 100644 (file)
--- a/include/linux/uinput.h
+++ b/include/linux/uinput.h
@@ -20,7 +20,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
- * 
+ *
  * Changes/Revisions:
  *     0.2     16/10/2004 (Micah Dowty <micah@navi.cx>)
  *             - added force feedback support
@@ -51,7 +51,7 @@ struct uinput_request {
 
 struct uinput_device {
        struct input_dev        *dev;
-       struct semaphore        sem;
+       struct mutex            mutex;
        enum uinput_state       state;
        wait_queue_head_t       waitq;
        unsigned char           ready;