[PATCH] hwmon: (dell-smm-hwmon) Disable BIOS fan control upon loading

[Valdis Kl=?utf-8?Q?=c4=93?=tnieks]

On Tue, 12 Nov 2019 22:41:28 +0100, Giovanni Mascellani said:

> Disable BIOS fan control on such laptops at module loading, and
> re-enable it at module unloading, so that a userspace controller like
> i8kmon can take control of the fan.

The code as written appears to make the disabling unconditional,
which means that if a userspace controller *isn't* started things will
get toasty really fast. Probably need a module parameter or something
to control that.

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