4.8-stable review patch. If anyone has any objections, please let me know.
------------------ From: Laura Abbott <[email protected]> commit c25badc9ceb612c6cc227a6fc4b0aaf678e3bcf9 upstream. When converting to a shared library in ac5a181d065d ("cpupower: Add cpuidle parts into library"), cpu_freq_cpu_exists() was converted to cpupower_is_cpu_online(). cpu_req_cpu_exists() returned 0 on success and -ENOSYS on failure whereas cpupower_is_cpu_online returns 1 on success. Check for the correct return value in cpufreq-set. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1374212 Fixes: ac5a181d065d (cpupower: Add cpuidle parts into library) Reported-by: Julian Seward <[email protected]> Signed-off-by: Laura Abbott <[email protected]> Acked-by: Thomas Renninger <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- tools/power/cpupower/utils/cpufreq-set.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) --- a/tools/power/cpupower/utils/cpufreq-set.c +++ b/tools/power/cpupower/utils/cpufreq-set.c @@ -296,7 +296,7 @@ int cmd_freq_set(int argc, char **argv) struct cpufreq_affected_cpus *cpus; if (!bitmask_isbitset(cpus_chosen, cpu) || - cpupower_is_cpu_online(cpu)) + cpupower_is_cpu_online(cpu) != 1) continue; cpus = cpufreq_get_related_cpus(cpu); @@ -316,10 +316,7 @@ int cmd_freq_set(int argc, char **argv) cpu <= bitmask_last(cpus_chosen); cpu++) { if (!bitmask_isbitset(cpus_chosen, cpu) || - cpupower_is_cpu_online(cpu)) - continue; - - if (cpupower_is_cpu_online(cpu) != 1) + cpupower_is_cpu_online(cpu) != 1) continue; printf(_("Setting cpu: %d\n"), cpu);
