diff options
| author | Jagadeesh Kona <quic_jkona@quicinc.com> | 2024-05-20 12:07:32 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-08 07:54:43 +0200 |
| commit | ea37096a6a925100fb4476cd59b8c71fe00ee188 (patch) | |
| tree | b1e412266d024db4213e79b9dd88aa5e32f99610 /drivers/cpufreq/scmi-cpufreq.c | |
| parent | 0bd1be7e84f5c5f6a8cc624084f6592c168dd9af (diff) | |
cpufreq: scmi: Avoid overflow of target_freq in fast switch
[ Upstream commit 074cffb5020ddcaa5fafcc55655e5da6ebe8c831 ]
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>
Diffstat (limited to 'drivers/cpufreq/scmi-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/scmi-cpufreq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index 028df8a5f537..079940c69ee0 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -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; |