diff options
| author | Rafael J. Wysocki <rjw@rjwysocki.net> | 2013-10-25 22:36:40 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@rjwysocki.net> | 2013-10-25 22:36:40 +0200 |
| commit | 6ddee424fea2d269c2f402278d93165c7b92dc58 (patch) | |
| tree | c1b1d0d9058846a6da22def648dea61e16faacd0 /drivers/cpufreq/cpufreq_userspace.c | |
| parent | e4db1c7439b31993a4886b273bb9235a8eea82bf (diff) | |
| parent | a814613b9a32d9ab9578d9dab396265c826d37f0 (diff) | |
Merge back earlier 'pm-cpufreq' material.
Conflicts:
drivers/cpufreq/omap-cpufreq.c
Diffstat (limited to 'drivers/cpufreq/cpufreq_userspace.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_userspace.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c index 03078090b5f7..4dbf1db16aca 100644 --- a/drivers/cpufreq/cpufreq_userspace.c +++ b/drivers/cpufreq/cpufreq_userspace.c @@ -38,18 +38,7 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq) if (!per_cpu(cpu_is_managed, policy->cpu)) goto err; - /* - * We're safe from concurrent calls to ->target() here - * as we hold the userspace_mutex lock. If we were calling - * cpufreq_driver_target, a deadlock situation might occur: - * A: cpufreq_set (lock userspace_mutex) -> - * cpufreq_driver_target(lock policy->lock) - * B: cpufreq_set_policy(lock policy->lock) -> - * __cpufreq_governor -> - * cpufreq_governor_userspace (lock userspace_mutex) - */ ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L); - err: mutex_unlock(&userspace_mutex); return ret; |
