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authorGuenter Roeck <linux@roeck-us.net>2014-12-04 20:58:15 +0300
committerGuenter Roeck <linux@roeck-us.net>2014-12-05 21:18:02 +0300
commit4ad40cc568c5537de11092d3362f9cb287f915d9 (patch)
treed645f9b83c36b6aa231740ab1f8926f2158f7c99 /Documentation/hwmon/tmp401
parentb95579cd8795442e75c8846fa6eeb4fb442e9d83 (diff)
downloadlinux-4ad40cc568c5537de11092d3362f9cb287f915d9.tar.xz
hwmon: (lm75) Strengthen detect function
A chip returning 0x00 in all registers is erroneously detected as LM75. Check hysteresis and temperature limit registers and abort if both are 0 to reduce the likelyhood for this to happen. Reviewed-by: Rob Coulson <rob.coulson@gmail.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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