Fix NPE crash-loop when cpufreq not available in the kernel.

        }

        int speed = 0;

        String file = readFile("/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state", '\0');

        // Note: file may be null on kernels without cpufreq (i.e. the emulator's)

        if (file != null) {

            StringTokenizer st = new StringTokenizer(file, "\n ");

            while (st.hasMoreElements()) {

                String token = st.nextToken();

                    Log.i(TAG, "Unable to parse time_in_state");

                }

            }

        }

        if (out == null) {

            out = new long[speed];

            mCpuSpeeds = new long[speed];