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Input: fix input_free_device() implementation

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input_free_device can't just call kfree because if input_register_device
fails after successfully registering corresponding class device there
is a chance that someone could get a reference to it. We need to use
input_put_device() to make sure that we don't delete input device until
last reference to it was dropped.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2006-03-14 00:09:05 -05:00
parent 58a343f22e
commit 493a7e0d56
1 changed files with 6 additions and 6 deletions
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12
include/linux/input.h
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@ -421,7 +421,7 @@ struct input_absinfo {
#define BTN_GEAR_UP 0x151
#define KEY_OK 0x160
#define KEY_SELECT 0x161
#define KEY_SELECT 0x161
#define KEY_GOTO 0x162
#define KEY_CLEAR 0x163
#define KEY_POWER2 0x164
@ -995,11 +995,6 @@ static inline void init_input_dev(struct input_dev *dev)
struct input_dev *input_allocate_device(void);
static inline void input_free_device(struct input_dev *dev)
{
kfree(dev);
}
static inline struct input_dev *input_get_device(struct input_dev *dev)
{
return to_input_dev(class_device_get(&dev->cdev));
@ -1010,6 +1005,11 @@ static inline void input_put_device(struct input_dev *dev)
class_device_put(&dev->cdev);
}
static inline void input_free_device(struct input_dev *dev)
{
input_put_device(dev);
}
int input_register_device(struct input_dev *);
void input_unregister_device(struct input_dev *);