[PATCH V2] cpufreq: scmi: Avoid overflow of target_freq in fast switch

Viresh Kumar viresh.kumar at linaro.org
Mon May 20 01:47:44 PDT 2024


On 20-05-24, 12:07, Jagadeesh Kona wrote:
> Conversion of target_freq to HZ in scmi_cpufreq_fast_switch()
> can lead to overflow if the multiplied result is greater than
> UINT_MAX, since type of target_freq is unsigned int. Avoid this
> overflow by assigning target_freq to unsigned long variable for
> converting it to HZ.
> 
> Signed-off-by: Jagadeesh Kona <quic_jkona at quicinc.com>
> ---
> Changes in V2:
>   - Updated freq variable from u64 to unsigned long to keep it
>     consistent with the rate parameter in scmi .freq_set() callback
>   - Link to v1: https://lore.kernel.org/all/20240517070157.19553-1-quic_jkona@quicinc.com/
> ---
>  drivers/cpufreq/scmi-cpufreq.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied. Thanks.

-- 
viresh



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