diff options
| author | Dmitry Torokhov | 2007-02-18 01:40:37 -0500 |
|---|---|---|
| committer | Dmitry Torokhov | 2007-02-18 01:40:37 -0500 |
| commit | 1efa770f8ef0bfe12cd004f2e1f75eefcd8699d3 (patch) | |
| tree | 7131705511de28a8774d4fc67d2d4ae1277fc5b6 /drivers | |
| parent | 82dd9eff4bf3b17f5f511ae931a1f350c36ca9eb (diff) | |
Input: do not lock device when showing name, phys and uniq
Now that sysfs attributes return -ENODEV once driver requests their
removal we do not need to handle scenario when data is deleted from
under our feet and can simplify the code.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/input.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index efa1b1f75393..a9a706f8fff9 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -588,18 +588,9 @@ static inline void input_proc_exit(void) { } 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 = mutex_lock_interruptible(&input_dev->mutex); \ - if (retval) \ - return retval; \ - \ - retval = scnprintf(buf, PAGE_SIZE, \ - "%s\n", input_dev->name ? input_dev->name : ""); \ - \ - mutex_unlock(&input_dev->mutex); \ - \ - return retval; \ + return scnprintf(buf, PAGE_SIZE, "%s\n", \ + input_dev->name ? input_dev->name : ""); \ } \ static CLASS_DEVICE_ATTR(name, S_IRUGO, input_dev_show_##name, NULL); @@ -1049,10 +1040,6 @@ void input_unregister_device(struct input_dev *dev) sysfs_remove_group(&dev->cdev.kobj, &input_dev_id_attr_group); sysfs_remove_group(&dev->cdev.kobj, &input_dev_attr_group); - mutex_lock(&dev->mutex); - dev->name = dev->phys = dev->uniq = NULL; - mutex_unlock(&dev->mutex); - class_device_unregister(&dev->cdev); input_wakeup_procfs_readers(); |