diff options
Diffstat (limited to 'drivers/cpufreq/scpi-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/scpi-cpufreq.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c index 763692e327b1..f111f1f3bf38 100644 --- a/drivers/cpufreq/scpi-cpufreq.c +++ b/drivers/cpufreq/scpi-cpufreq.c @@ -37,9 +37,16 @@ static struct scpi_ops *scpi_ops; static unsigned int scpi_cpufreq_get_rate(unsigned int cpu) { - struct cpufreq_policy *policy = cpufreq_cpu_get_raw(cpu); - struct scpi_data *priv = policy->driver_data; - unsigned long rate = clk_get_rate(priv->clk); + struct cpufreq_policy *policy; + struct scpi_data *priv; + unsigned long rate; + + policy = cpufreq_cpu_get_raw(cpu); + if (unlikely(!policy)) + return 0; + + priv = policy->driver_data; + rate = clk_get_rate(priv->clk); return rate / 1000; } @@ -47,8 +54,9 @@ static unsigned int scpi_cpufreq_get_rate(unsigned int cpu) static int scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) { - u64 rate = policy->freq_table[index].frequency * 1000; + unsigned long freq_khz = policy->freq_table[index].frequency; struct scpi_data *priv = policy->driver_data; + unsigned long rate = freq_khz * 1000; int ret; ret = clk_set_rate(priv->clk, rate); @@ -56,7 +64,7 @@ scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index) if (ret) return ret; - if (clk_get_rate(priv->clk) != rate) + if (clk_get_rate(priv->clk) / 1000 != freq_khz) return -EIO; return 0; |