cpufreq: cpufreq_interactive: avoid NULL point access

[firefly-linux-kernel-4.4.55.git] / drivers / cpufreq / cpufreq_interactive.c

diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c
index d9927f92ea8b2933ca7cbe35a4ef69011376265d..055e990a2f1db035cbbff273fccefe8c0dfd13c8 100644 (file)
--- a/drivers/cpufreq/cpufreq_interactive.c
+++ b/drivers/cpufreq/cpufreq_interactive.c
@@ -1171,6 +1171,9 @@ static void cpufreq_interactive_input_event(struct input_handle *handle,
        now = ktime_to_us(ktime_get());
        for_each_online_cpu(i) {
                pcpu = &per_cpu(cpuinfo, i);
        now = ktime_to_us(ktime_get());
        for_each_online_cpu(i) {
                pcpu = &per_cpu(cpuinfo, i);

+               if (!pcpu->policy)
+                       continue;
+

                if (have_governor_per_policy())
                        tunables = pcpu->policy->governor_data;
                else
                if (have_governor_per_policy())
                        tunables = pcpu->policy->governor_data;
                else