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authorDmitry Torokhov <dtor@insightbb.com>2007-02-18 01:40:37 -0500
committerDmitry Torokhov <dtor@insightbb.com>2007-02-18 01:40:37 -0500
commit1efa770f8ef0bfe12cd004f2e1f75eefcd8699d3 (patch)
tree7131705511de28a8774d4fc67d2d4ae1277fc5b6
parent82dd9eff4bf3b17f5f511ae931a1f350c36ca9eb (diff)
downloadop-kernel-dev-1efa770f8ef0bfe12cd004f2e1f75eefcd8699d3.zip
op-kernel-dev-1efa770f8ef0bfe12cd004f2e1f75eefcd8699d3.tar.gz
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>
-rw-r--r--drivers/input/input.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index efa1b1f..a9a706f 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();
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