[PATCH v2 0/2] hwmon: (lenovo-ec-sensors): Fix EC signature validation and I/O resource management

[Kean Ren <rh_king@163.com>]

Hi Guenter,

This is v2 of the lenovo-ec-sensors fix series.

The original v1 [1] included a combined patch for both the EC signature
fix and the I/O resource conversion, along with other driver fixes.
Based on your feedback, this v2 makes the following changes:

- Dropped the "Fix NULL pointer dereference" patch (previously patch 2).
- Keep the original case of default case, remove the dev_err.

Patch 1 converts manual request_region()/release_region() calls to
devm_request_region(), eliminating a double-release on the probe error
path and a release-after-use window on module exit.

Patch 2 fixes the EC "MCHP" signature check that used && instead of ||,
which caused the validation to accept a non-Microchip EC if any single
byte of the expected 4-byte signature happened to match.

Both patches apply cleanly against v7.1-rc3 and pass checkpatch with
0 errors, 0 warnings.

[1] https://sashiko.dev/#/patchset/20260514011411.4167069-1-rh_king@163.com

Kean (2):
  hwmon: (lenovo-ec-sensors): Convert to devm_request_region()
  hwmon: (lenovo-ec-sensors): Fix EC "MCHP" signature validation logic

 drivers/hwmon/lenovo-ec-sensors.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

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2.53.0