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| author | Gleb Natapov <gleb@redhat.com> | 2013-10-17 17:04:47 +0300 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-10-17 17:41:49 +0300 |
| commit | 13acfd5715144518232d8e29acf7c76ef1b089d8 (patch) | |
| tree | 093c4311a737210bbdd3d1919f8193cb5f017241 /drivers/cpufreq/cpufreq.c | |
| parent | d570142674890fe10b3d7d86aa105e3dfce1ddfa (diff) | |
| parent | 34ec4de42be5006abdd8d0c08b306ffaa64d0d5d (diff) | |
Powerpc KVM work is based on a commit after rc4.
Merging master into next to satisfy the dependencies.
Conflicts:
arch/arm/kvm/reset.c
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 89b3c52cd5c..04548f7023a 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1460,6 +1460,9 @@ unsigned int cpufreq_get(unsigned int cpu) { unsigned int ret_freq = 0; + if (cpufreq_disabled() || !cpufreq_driver) + return -ENOENT; + if (!down_read_trylock(&cpufreq_rwsem)) return 0; |