From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89EA147CC91; Sat, 12 Sep 2026 13:41:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789220520; cv=none; b=nTmj1ubZdiW6Hza4gZmBtSBfnAa1xpct0QR2SGhcKGmfy6sgVEnHdPuZ8Wxc8OQ7k+ajVVcvMiUGvZnD+LKGhOYPCCnEvsb8lhTzvqsEeMok6+l9d3s+Y+riN/TllKt4uKMSv4WzSwpqiZhOSJCI21CYrRmmAJTLUQBEN6xbPoI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789220520; c=relaxed/simple; bh=WuC9t8knJAUXJ9hv7q51TYna0OugjrVlyjyF8b7ROfc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NaaoxDl+ZE/TyeEifnLZ6z0MC6rHgmV+Df2i2WLIxhvREK/m79q/IHSqCadChS9hsqrRoJVQGypywWCKM5bDHD77sHoa+cgfAwN9MktxX/Jljqa56ECDDlREIJ+im+vSKKOiEUdw/uV+WJ2YfGKyj27t/bkChtVi9cip3dKRaao= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=b6Q+Jx/4; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="b6Q+Jx/4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2FAFE1F000FF; Sat, 12 Sep 2026 13:41:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789220519; bh=evHytwcggZKTAkfXlUNi65+tmNWn8WhWoeZtLGNyvW8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=b6Q+Jx/4EPcZ8QJ3U1e6oxE87AO6K8GVs+TVg/e9eLk2Nq+IY56qGOOSLsKTAxoJE 9ZwDIVpKso19fu2p3g89OiijhSYpAtmEltTUHEv1pIiDSuh/09buX9GMQF8Vox5UfW 9NgHLucePPEQwDSBxaIPAa2SwUfgO+R/MPH7KCs4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Cong Nguyen , Guenter Roeck Subject: [PATCH 6.6 0193/1424] hwmon: (max6621) fix temperature clamp range Date: Sat, 12 Sep 2026 08:43:45 +0200 Message-ID: <20260912065611.609166514@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Cong Nguyen commit 24fbeb83d9b750a36da42cb835a154d80fd3d495 upstream. MAX6621_TEMP_INPUT_MIN and MAX6621_TEMP_INPUT_MAX are used to clamp the writable offset and critical thresholds. They are defined as -127000 and 128000. The driver decodes the temperature through an s8 and its own comment in max6621_read() documents an 8-bit two's complement value, whose range is -128 to +127 degrees C. The current limits therefore reject the valid -128 degrees C and accept +128 degrees C, which does not fit the 8-bit range. Correct the limits to -128000 and 127000. Fixes: 92b64580f14b ("hwmon: (max6621) Add support for Maxim MAX6621 temperature sensor") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4 Signed-off-by: Cong Nguyen Link: https://lore.kernel.org/r/9d3a4f1895a47794bb359a2a32fb1ccd6a15812c.1786334038.git.congnt264@gmail.com Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/hwmon/max6621.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/hwmon/max6621.c +++ b/drivers/hwmon/max6621.c @@ -17,8 +17,8 @@ #define MAX6621_DRV_NAME "max6621" #define MAX6621_TEMP_INPUT_REG_NUM 9 -#define MAX6621_TEMP_INPUT_MIN -127000 -#define MAX6621_TEMP_INPUT_MAX 128000 +#define MAX6621_TEMP_INPUT_MIN -128000 +#define MAX6621_TEMP_INPUT_MAX 127000 #define MAX6621_TEMP_ALERT_CHAN_SHIFT 1 #define MAX6621_TEMP_S0D0_REG 0x00