hwmon: (lm77) Do not preserve hysteresis when updating critical temp limit
Updating the hysteresis value when updating the critical temperature limit was following the rule of 'least surprise'. However, it had the undesirable side effect of changing the hysteresis for all other attributes, which defeats the purpose of least surprise. In addition, it could result in invalid hysteresis values if the resulting hysteresis was too large. In such cases the resulting hysteresis ended up changed anyway, which again defeats the purpose. So drop that code and document the new behavior. Reviewed-by: NJean Delvare <jdelvare@suse.de> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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