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Mon, 27 Jul 2026 17:22:25 -0700 (PDT) From: Luiz Angelo Daros de Luca Subject: [hwmon PATCH v2 0/8] hwmon: (adt7470): Multiple fixes Date: Mon, 27 Jul 2026 21:22:16 -0300 Message-Id: <20260727-adt7470_fixes-v2-0-598e38a46ba6@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIADj2Z2oC/12NSw6CMBCGr0JmbU07AlVX3sMQU9sRxlgwLaKGc HcL7Fz+z2+ESIEpwjEbIdDAkbs2CdxkYBvT1iTYJQ0osZRalcK4XudaXm78oSiKg1ESUe+dRki bZ6AlSJMzNG+fzqrVjq/rnWw/f83FhmPfhe/CHdRSXxGo/xCDElKgyjF3RSHtzp1qb/ixtZ2Ha pqmH14LolrDAAAA X-Change-ID: 20260716-adt7470_fixes-59a102278d72 To: Guenter Roeck , Chris Packham , Andrew Morton , "Darrick J. Wong" , "Mark M. Hoffman" Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, Luiz Angelo Daros de Luca , sashiko-bot@kernel.org X-Mailer: b4 0.15.2 This series fixes several issues in the adt7470 driver: - Restore PWM configuration after I2C failures. - Avoid cache corruption after failed writes. - Prevent busy looping when auto_update_interval is zero. - Fix incorrect temperature alarm reporting. - Cache the PWM frequency and fix error propagation. - Correct unused PWM auto-mode mask definitions. - Fix TOCTOU issue when reading fan data. - Fix PWM auto temp state array corruption and missing bounds check in sysfs read. Signed-off-by: Luiz Angelo Daros de Luca --- Changes in v2: - Added new patch to fix TOCTOU divide-by-zero crash in fan speed read. - "Fix temperature alarm logic...": Added TEMP_ALARM_BIT and FAN_ALARM_BIT macros for clarity. - "Use cached PWM frequency value": Fixed incorrect array indexing by caching the closest frequency early. - Added patch to fix PWM auto temp state array corruption and missing bounds check. - Link to v1: https://patch.msgid.link/20260727-adt7470_thermalzone-v3-0-21424d550c3d@gmail.com To: Guenter Roeck To: Chris Packham To: Andrew Morton To: "Darrick J. Wong" To: "Mark M. Hoffman" Cc: linux-hwmon@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- Luiz Angelo Daros de Luca (8): hwmon: (adt7470) Fix fans stuck in manual mode on I2C errors hwmon: (adt7470) Fix cache updated before hardware write on I2C error hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread hwmon: (adt7470) Fix swapped PWM3 and PWM4 auto mode masks hwmon: (adt7470) Fix temperature alarm logic in hwmon_temp_read() hwmon: (adt7470) Use cached PWM frequency value hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read hwmon: (adt7470) Fix PWM auto temp state array and bounds check drivers/hwmon/adt7470.c | 129 ++++++++++++++++++++++++++++++++++-------------- 1 file changed, 92 insertions(+), 37 deletions(-) --- base-commit: 7e12ea5aae19ee07d466e9613ccba753349c9c1d change-id: 20260716-adt7470_fixes-59a102278d72 Best regards, -- Luiz Angelo Daros de Luca