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

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))