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From: Kean <rh_king@163.com>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Mark Pearson <mpearson-lenovo@squebb.ca>,
	linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org,
	Kean <rh_king@163.com>
Subject: [PATCH 0/3] hwmon: lenovo-ec-sensors: Probe error handling fixes
Date: Thu, 14 May 2026 09:14:08 +0800	[thread overview]
Message-ID: <20260514011411.4167069-1-rh_king@163.com> (raw)

This series fixes several bugs in the probe() error handling path of
the lenovo-ec-sensors driver found during code review.

Patch 1 fixes a logic error in the EC signature check where && was
used instead of ||, causing the signature verification to be
effectively bypassed.

Patch 2 adds a missing NULL pointer check for dmi_first_match(),
which can return NULL on unsupported platforms.

Patch 3 converts manual request_region()/release_region() to the
devm-managed variant, fixing a double-release and a resource leak
in the probe error paths.

Kean (3):
  hwmon: lenovo-ec-sensors: Fix EC signature check logic in probe
  hwmon: lenovo-ec-sensors: Fix NULL pointer dereference when DMI match
    fails
  hwmon: lenovo-ec-sensors: Use devm_request_region for automatic
    cleanup

 drivers/hwmon/lenovo-ec-sensors.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

-- 
2.47.3


             reply	other threads:[~2026-05-14  1:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-14  1:14 Kean [this message]
2026-05-14  1:14 ` [PATCH 1/3] hwmon: lenovo-ec-sensors: Fix EC signature check logic in probe Kean
2026-05-14  1:37   ` Guenter Roeck
2026-05-14  2:40     ` Mark Pearson
2026-05-14  1:14 ` [PATCH 2/3] hwmon: lenovo-ec-sensors: Fix NULL pointer dereference when DMI match fails Kean
2026-05-14  1:29   ` Guenter Roeck
2026-05-14  3:25   ` Guenter Roeck
2026-05-15  8:10     ` Kean
2026-05-15  8:48       ` Guenter Roeck
2026-05-15  8:30     ` Kean
2026-05-14 11:57   ` sashiko-bot
2026-05-14  1:14 ` [PATCH 3/3] hwmon: lenovo-ec-sensors: Use devm_request_region for automatic cleanup Kean
2026-05-14  1:36   ` Guenter Roeck
2026-05-14  2:39     ` Mark Pearson
2026-05-14  3:24       ` Guenter Roeck
2026-05-14 12:19   ` sashiko-bot

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