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powercap: DTPM: Check for Energy Model type

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The Energy Model power values might be artificial. In such case
it's safe to bail out during the registration, since the PowerCap
framework supports only micro-Watts.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Ionela Voinescu <ionela.voinescu@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lukasz Luba 2022-03-21 09:57:29 +00:00 • committed by Rafael J. Wysocki
parent 9926bbec3a
commit 985a67709a
1 changed files with 1 additions and 1 deletions
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2
drivers/powercap/dtpm_cpu.c
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@ -211,7 +211,7 @@ static int __dtpm_cpu_setup(int cpu, struct dtpm *parent)
return 0;
pd = em_cpu_get(cpu);
if (!pd)
if (!pd || em_is_artificial(pd))
return -EINVAL;
dtpm_cpu = kzalloc(sizeof(*dtpm_cpu), GFP_KERNEL);