diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-01-02 12:34:33 +0530 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-01-23 22:49:34 +0100 |
| commit | d7a9771c1a37af8d0cd0cf97723aeea88b9de8bb (patch) | |
| tree | e8131d4c3cc33fd7c24be19bfdfc86f278795bce /drivers/cpufreq | |
| parent | 7f0c020ab6ecb513394de9b02df33a5cfc62084f (diff) | |
| download | linux-d7a9771c1a37af8d0cd0cf97723aeea88b9de8bb.tar.bz2 | |
cpufreq: use light-weight cpufreq_cpu_get_raw() in __cpufreq_add_dev()
We just need to check if a 'policy' is already present for the cpu we are
adding. We don't need to take all the locks and do kobject usage updates. Use
the light-weight cpufreq_cpu_get_raw() routine instead.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 127cc6f18ca5..3a415130f6e1 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1116,11 +1116,9 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif) /* check whether a different CPU already registered this * CPU because it is in the same boat. */ - policy = cpufreq_cpu_get(cpu); - if (unlikely(policy)) { - cpufreq_cpu_put(policy); + policy = cpufreq_cpu_get_raw(cpu); + if (unlikely(policy)) return 0; - } if (!down_read_trylock(&cpufreq_rwsem)) return 0; |