Show N/A instead of 0KHz when CPU frequency is not available.

1 files changed, 3 insertions, 3 deletions

diff --git a/linux/Platform.c b/linux/Platform.c
index e92d0c51..fc81d3bf 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -193,10 +193,10 @@ double Platform_setCPUValues(Meter* this, int cpu) {
    percent = CLAMP(percent, 0.0, 100.0);
    if (isnan(percent)) percent = 0.0;
 
-   v[CPU_METER_FREQUENCY] = 0;
+   v[CPU_METER_FREQUENCY] = -1;
    if (this->pl->settings->showCPUFrequency) {
-      char filename[63+1];
-      xSnprintf(filename, 63, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_cur_freq", cpu - 1);
+      char filename[64];
+      xSnprintf(filename, sizeof(filename), "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_cur_freq", cpu - 1);
       FILE* fd = fopen(filename, "r");
       if (fd) {
          unsigned int cpuFrequency;