path: root/include
diff options
authorDmitry Torokhov <dmitry.torokhov@gmail.com>2008-04-01 00:22:53 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-04-01 00:22:53 -0400
commita7097ff89c3204737a07eecbc83f9ae6002cc534 (patch)
tree11fe55cbfb3651fc57e59fc838d1e084f5e63749 /include
parent399f486286f44d55c4fff0e9cc5d712f2b443489 (diff)
Input: make sure input interfaces pin parent input devices
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>
Diffstat (limited to 'include')
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/input.h b/include/linux/input.h
index 1bdc39a8c76c..cae2c35d1206 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -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)

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