From 1b947c904c4831d787c1f17a6a6cd40c7144ba85 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 19 Feb 2015 17:02:05 +0530 Subject: [PATCH] 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 Acked-by: Saravana Kannan Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index ee3d920ae207..48ca0764eb52 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -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)) -- 2.20.1