GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Input: make sure input interfaces pin parent input devices

Browse source 
Recent driver core change causes references to parent devices being
dropped early, at device_del() time, as opposed to when all children
are freed. This causes oops in evdev with grabbed devices. Take the
reference to the parent input device ourselves to ensure that it
stays around long enough.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2008-04-01 00:22:53 -04:00
parent 399f486286
commit a7097ff89c
4 changed files with 9 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/linux/input.h
View file

@ -1227,12 +1227,13 @@ void input_free_device(struct input_dev *dev);
static inline struct input_dev *input_get_device(struct input_dev *dev)
{
return to_input_dev(get_device(&dev->dev));
return dev ? to_input_dev(get_device(&dev->dev)) : NULL;
}
static inline void input_put_device(struct input_dev *dev)
{
put_device(&dev->dev);
if (dev)
put_device(&dev->dev);
}
static inline void *input_get_drvdata(struct input_dev *dev)