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cpufreq: CPPC: Avoid overflow when calculating desired_perf

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This patch fixes overflow issue when calculating the desired_perf.

Fixes: ad38677df4 (cpufreq: CPPC: Force reporting values in KHz to fix user space interface)
Signed-off-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Hoan Tran 2016-09-14 16:08:28 -07:00 committed by Rafael J. Wysocki
parent e01072d22d
commit f89f4147f7
1 changed files with 1 additions and 1 deletions
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drivers/cpufreq/cppc_cpufreq.c
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@ -84,7 +84,7 @@ static int cppc_cpufreq_set_target(struct cpufreq_policy *policy,
cpu = all_cpu_data[policy->cpu];
cpu->perf_ctrls.desired_perf = target_freq * policy->max / cppc_dmi_max_khz;
cpu->perf_ctrls.desired_perf = (u64)target_freq * policy->max / cppc_dmi_max_khz;
freqs.old = policy->cur;
freqs.new = target_freq;