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linux/drivers/input
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Johannes Kirchmair 9a12e2fb3f Input: tsc2007 - prevent overflow in pressure calculation 
The touch resistance calculation in the tsc2007 driver is prone to
overflow if (z2 - z1) is large and also x is reasonably big. This
overflow results in the driver emitting input events when very little
touch pressure is applied. In these events the x and y coordinates can
be substantially off.

Avoid the overflow by using u64 when calculating resistance value.

Signed-off-by: Johannes Kirchmair <johannes.kirchmair@skidata.com>
Link: https://lore.kernel.org/r/20250129-fix_tsc_calculation_overflow-v2-1-9e51333496ad@skidata.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
History 2025-09-03 07:44:00 -07:00
..
gameport Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
joystick Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
keyboard Linux 6.17-rc2 2025-08-21 11:46:49 -07:00
misc Immutable branch between MFD and Input due for the v6.18 merge window 2025-09-03 05:23:14 -07:00
mouse Merge branch 'next' into for-linus 2025-08-06 10:08:54 -07:00
rmi4 Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
serio Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
tablet Input updates for v6.13-rc0 2024-11-25 10:31:39 -08:00
tests Input updates for v6.11-rc0 2024-07-19 16:51:39 -07:00
touchscreen Input: tsc2007 - prevent overflow in pressure calculation 2025-09-03 07:44:00 -07:00
apm-power.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
evdev.c Input: evdev - switch matching to EV_SYN 2025-07-01 21:02:57 -07:00
ff-core.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
ff-memless.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
input-compat.c Input: move input_bits_to_string() to input-compat.c 2025-08-21 12:00:58 -07:00
input-compat.h Input: move input_bits_to_string() to input-compat.c 2025-08-21 12:00:58 -07:00
input-core-private.h Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-leds.c Input: leds - change config symbol dependency for audio mute trigger 2024-03-03 14:46:06 -08:00
input-mt.c Input: mt - make use of __free() cleanup facility 2024-12-23 22:53:57 -08:00
input-poller.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
input-poller.h Input: add support for polling to input devices 2019-08-20 12:04:07 -07:00
input.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
joydev.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
Kconfig Input: remove evbug driver 2024-12-17 13:53:52 -08:00
Makefile Input: touch-overlay - add touchscreen overlay handling 2025-07-27 01:41:21 -07:00
matrix-keymap.c Input: matrix-keymap - switch to using __free() cleanup facility 2024-08-29 10:59:30 -07:00
mousedev.c *: convert stream-like files -> stream_open, even if they use noop_llseek 2019-07-14 16:09:19 +03:00
sparse-keymap.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
touch-overlay.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
touchscreen.c Input: include export.h in modules using EXPORT_SYMBOL*() 2025-08-21 12:00:59 -07:00
vivaldi-fmap.c Input: add missing MODULE_DESCRIPTION() macros 2024-06-09 14:38:48 -07:00