diff options
| -rw-r--r-- | drivers/input/input.c | 15 | ||||
| -rw-r--r-- | include/linux/input.h | 2 |
2 files changed, 9 insertions, 8 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index 4fe3da3c667..3e22bb11ee0 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/poll.h> #include <linux/device.h> +#include <linux/mutex.h> MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); MODULE_DESCRIPTION("Input core"); @@ -224,7 +225,7 @@ int input_open_device(struct input_handle *handle) struct input_dev *dev = handle->dev; int err; - err = down_interruptible(&dev->sem); + err = mutex_lock_interruptible(&dev->mutex); if (err) return err; @@ -236,7 +237,7 @@ int input_open_device(struct input_handle *handle) if (err) handle->open--; - up(&dev->sem); + mutex_unlock(&dev->mutex); return err; } @@ -255,13 +256,13 @@ void input_close_device(struct input_handle *handle) input_release_device(handle); - down(&dev->sem); + mutex_lock(&dev->mutex); if (!--dev->users && dev->close) dev->close(dev); handle->open--; - up(&dev->sem); + mutex_unlock(&dev->mutex); } static void input_link_handle(struct input_handle *handle) @@ -512,13 +513,13 @@ static ssize_t input_dev_show_##name(struct class_device *dev, char *buf) \ struct input_dev *input_dev = to_input_dev(dev); \ int retval; \ \ - retval = down_interruptible(&input_dev->sem); \ + retval = mutex_lock_interruptible(&input_dev->mutex); \ if (retval) \ return retval; \ \ retval = sprintf(buf, "%s\n", input_dev->name ? input_dev->name : ""); \ \ - up(&input_dev->sem); \ + mutex_unlock(&input_dev->mutex); \ \ return retval; \ } \ @@ -790,7 +791,7 @@ int input_register_device(struct input_dev *dev) return -EINVAL; } - init_MUTEX(&dev->sem); + mutex_init(&dev->mutex); set_bit(EV_SYN, dev->evbit); /* diff --git a/include/linux/input.h b/include/linux/input.h index 6d4cc3c110d..6dca6baf06f 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -929,7 +929,7 @@ struct input_dev { struct input_handle *grab; - struct semaphore sem; /* serializes open and close operations */ + struct mutex mutex; /* serializes open and close operations */ unsigned int users; struct class_device cdev; |