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cpufreq: don't allow governor limits to be changed when it is disabled
__cpufreq_governor() returns with -EBUSY when governor is already stopped and we try to stop it again, but when it is stopped we must not allow calls to CPUFREQ_GOV_LIMITS event as well. This patch adds this check in __cpufreq_governor(). Reported-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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