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cpupower: Do not show an empty Idle_Stats monitor if no idle driver is available
By taking error values of: sysfs_get_idlestate_count(..); into account. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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@ -134,7 +134,7 @@ static struct cpuidle_monitor *cpuidle_register(void)
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/* Assume idle state count is the same for all CPUs */
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cpuidle_sysfs_monitor.hw_states_num = sysfs_get_idlestate_count(0);
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if (cpuidle_sysfs_monitor.hw_states_num == 0)
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if (cpuidle_sysfs_monitor.hw_states_num <= 0)
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return NULL;
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for (num = 0; num < cpuidle_sysfs_monitor.hw_states_num; num++) {
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