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cpufreq: scmi: Avoid overflow of target_freq in fast switch

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[ Upstream commit 074cffb502 ]

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@quicinc.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jagadeesh Kona 2024-05-20 12:07:32 +05:30 committed by Greg Kroah-Hartman
parent 0bd1be7e84
commit ea37096a6a
1 changed files with 2 additions and 2 deletions
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4
drivers/cpufreq/scmi-cpufreq.c
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@ -62,9 +62,9 @@ static unsigned int scmi_cpufreq_fast_switch(struct cpufreq_policy *policy,
unsigned int target_freq)
{
struct scmi_data *priv = policy->driver_data;
unsigned long freq = target_freq;
if (!perf_ops->freq_set(ph, priv->domain_id,
target_freq * 1000, true))
if (!perf_ops->freq_set(ph, priv->domain_id, freq * 1000, true))
return target_freq;
return 0;