[PATCH v1 0/2] Input: evdev/uinput errno alignment

[Iván Ezequiel Rodriguez]

Hi,

Two small fixes so ioctl failures match what helpers and uapi docs
already document.

Patch 1 propagates the return value of input_ff_effect_from_user()
from EVIOCSFF instead of always mapping failures to -EFAULT (wrong
size becomes -EINVAL).

Patch 2 returns -EINVAL for UI_ABS_SETUP when the axis code is out of
range (was -ERANGE) and rejects ABS_MT_SLOT with a non-zero minimum.

Base: v7.3-rc1

Tested: built bzImage with CONFIG_INPUT_UINPUT=y and CONFIG_INPUT_EVDEV=y;
QEMU initramfs smoke:

  - UI_ABS_SETUP with code > ABS_MAX → EINVAL
  - UI_ABS_SETUP ABS_MT_SLOT with min != 0 → EINVAL
  - EVIOCSFF with wrong size → EINVAL

Thanks,
Iván

Iván Ezequiel Rodriguez (2):
  Input: evdev: propagate EVIOCSFF copy errors correctly
  Input: uinput: align UI_ABS_SETUP validation with uapi docs

 drivers/input/evdev.c       | 5 +++--
 drivers/input/misc/uinput.c | 9 ++++++++-
 2 files changed, 11 insertions(+), 3 deletions(-)

-- 
2.43.0