diff options
Diffstat (limited to 'drivers/base/power/opp/cpu.c')
| -rw-r--r-- | drivers/base/power/opp/cpu.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/base/power/opp/cpu.c b/drivers/base/power/opp/cpu.c index 7654c5606307..7b445e88a0d5 100644 --- a/drivers/base/power/opp/cpu.c +++ b/drivers/base/power/opp/cpu.c @@ -10,6 +10,9 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/cpu.h> #include <linux/cpufreq.h> #include <linux/err.h> @@ -124,12 +127,12 @@ int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) struct device *dev; int cpu, ret = 0; - rcu_read_lock(); + mutex_lock(&dev_opp_list_lock); dev_opp = _find_device_opp(cpu_dev); if (IS_ERR(dev_opp)) { ret = -EINVAL; - goto out_rcu_read_unlock; + goto unlock; } for_each_cpu(cpu, cpumask) { @@ -150,10 +153,10 @@ int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) continue; } } -out_rcu_read_unlock: - rcu_read_unlock(); +unlock: + mutex_unlock(&dev_opp_list_lock); - return 0; + return ret; } EXPORT_SYMBOL_GPL(dev_pm_opp_set_sharing_cpus); |