arch_topology: validate input frequencies to arch_set_freq_scale()

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The current frequency passed to arch_set_freq_scale() could end up
being 0, signaling an error in setting a new frequency. Also, if the
maximum frequency in 0, this will result in a division by 0 error.

Therefore, validate these input values before using them for the
setting of the frequency scale factor.

Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Ionela Voinescu 2020-09-01 21:55:45 +01:00 • committed by Rafael J. Wysocki

parent 856deb866d

commit 0a10d3fe3e

1 changed files with 3 additions and 0 deletions

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drivers/base/arch_topology.c

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