PM: QoS: Add check to make sure CPU latency is non-negative

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CPU latency should never be negative, which will be incorrectly high
when converted to unsigned data type.

Commit 8d36694245 ("PM: QoS: Add check to make sure CPU freq is
non-negative") makes sure CPU frequency is non-negative to fix incorrect
behavior in freqency QoS.

Add an analogous check to make sure CPU latency is non-negative so as to
prevent this problem from happening in CPU latency QoS.

Signed-off-by: Clive Lin <clive.lin@mediatek.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Clive Lin 2023-07-31 14:03:54 +08:00 • committed by Rafael J. Wysocki

parent 706a741595

commit 5f55836ab4

1 changed files with 7 additions and 2 deletions

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kernel/power/qos.c

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