cpufreq: Remove CPU hotplug callbacks only if they were initialized
Since CPU hotplug callbacks are requested for CPUHP_AP_ONLINE_DYN state, successful callback initialization will result in cpuhp_setup_state() returning a positive value. Therefore acpi_cpufreq_online being zero indicates that callbacks have not been installed. This means that acpi_cpufreq_boost_exit() should only remove them if acpi_cpufreq_online is positive. Trying to call cpuhp_remove_state_nocalls(0) will cause a BUG(). Signed-off-by:Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com>
parent
1358e038
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