user/sven/linux.git/drivers/input/evdev.c, branch v3.9

Input: fix use-after-free introduced with dynamic minor changes

2012-10-22T05:50:37Z

Commit 7f8d4cad1e4e ("Input: extend the number of event (and other) devices") made evdev, joydev and mousedev to embed struct cdev into their respective structures representing input devices. Unfortunately character device structure may outlive the parent structure unless we do not set it up as parent of character device so that it will stay pinned until character device is freed. Also, now that parent structure is pinned while character device exists we do not need to pin and unpin it every time user opens or closes it. Reported-by: Dave Jones Signed-off-by: Dmitry Torokhov Acked-by: Al Viro Signed-off-by: Linus Torvalds

Input: extend the number of event (and other) devices

2012-10-08T16:37:55Z

Extend the amount of character devices, such as eventX, mouseX and jsX, from a hard limit of 32 per input handler to about 1024 shared across all handlers. To be compatible with legacy installations input handlers will start creating char devices with minors in their legacy range, however once legacy range is exhausted they will start allocating minors from the dynamic range 256-1024. Reviewed-by: David Herrmann Signed-off-by: Dmitry Torokhov

Input: evdev - Add the events() callback

2012-09-19T17:50:18Z

By sending a full frame of events at the same time, the irqsoff latency at heavy load is brought down from 200 us to 100 us. Cc: Daniel Kurtz Tested-by: Benjamin Tissoires Tested-by: Ping Cheng Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg

Input: Break out MT data

2012-09-19T17:50:17Z

Move all MT-related things to a separate place. This saves some bytes for non-mt input devices, and prepares for new MT features. Reviewed-and-tested-by: Benjamin Tissoires Tested-by: Ping Cheng Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg

Input: evdev - properly handle read/write with count 0

2012-05-02T07:23:58Z

According to the standard count 0 is special - no IO should happen but we can check error conditions (device gone away, etc), and return 0 if there are no errors. We used to return -EINVAL instead and we also could return 0 if an event was "stolen" by another thread. Signed-off-by: Dmitry Torokhov

Input: evdev - properly access RCU-protected 'grab' data

2012-05-02T07:23:14Z

We should use rcu_dereference_protected() when checking if given client is the one that grabbed the device. This fixes warnings produced by sparse. Signed-off-by: Dmitry Torokhov

Merge branch 'next' into for-linus

2012-03-20T00:02:01Z

Merge branch 'for-next' of github.com:rydberg/linux into next

2012-03-09T18:56:35Z

Merge commit 'v3.3-rc6' into next

2012-03-09T18:55:17Z

Input: evdev - fix variable initialisation

2012-02-24T08:52:43Z

Commit 509f87c5f564 (evdev - do not block waiting for an event if fd is nonblock) created a code path were it was possible to use retval uninitialized. This could lead to the xorg evdev input driver getting corrupt data and refusing to work with log messages like AUO-Pixcir touchscreen: Read error: Success sg060_keys: Read error: Success AUO-Pixcir touchscreen: Read error: Success sg060_keys: Read error: Success (for drivers auo-pixcir-ts and gpio-keys). Signed-off-by: Heiko Stuebner Acked-by: Dima Zavin Signed-off-by: Dmitry Torokhov