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cpufreq: Throw warning when we try to get policy for an invalid CPU

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Simply returning here with an error is not enough. It shouldn't be allowed at
all to try calling cpufreq_cpu_get() for an invalid CPU.

Add a WARN here to make it clear that it wouldn't be acceptable at all.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2015-02-19 17:02:05 +05:30 committed by Rafael J. Wysocki
parent 23faf0b743
commit 1b947c904c
1 changed files with 1 additions and 1 deletions
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2
drivers/cpufreq/cpufreq.c
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@ -229,7 +229,7 @@ struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
struct cpufreq_policy *policy = NULL;
unsigned long flags;
if (cpu >= nr_cpu_ids)
if (WARN_ON(cpu >= nr_cpu_ids))
return NULL;
if (!down_read_trylock(&cpufreq_rwsem))