Fix cpu_freq (#1493)

giampaolo · Apr 25, 2019 · 01e00a6 · 01e00a6
1 parent 7ee88af
commit 01e00a6
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/psutil/_pslinux.py b/psutil/_pslinux.py
@@ -668,7 +668,7 @@ def cpu_stats():
         ctx_switches, interrupts, soft_interrupts, syscalls)
 
 
-if os.path.exists("/sys/devices/system/cpu/cpufreq") or \
+if os.path.exists("/sys/devices/system/cpu/cpufreq/policy0") or \
         os.path.exists("/sys/devices/system/cpu/cpu0/cpufreq"):
     def cpu_freq():
         """Return frequency metrics for all CPUs.
@@ -715,6 +715,12 @@ def cpu_freq():
                     ret.append(_common.scpufreq(float(value), 0.0, 0.0))
         return ret
 
+else:
+    def cpu_freq():
+        """Dummy implementation when none of the above files are present.
+        """
+        return []
+
 
 # =====================================================================
 # --- network