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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 12:34:27 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 12:34:27 -0800 |
| commit | 74790147fb4e9b71083a62a525ab283a275d63b7 (patch) | |
| tree | 2805293e7f1806ce2fd804255f868ab94edeae88 /drivers/devfreq/devfreq.c | |
| parent | f6dcf8e747a0723ace5275334bacfcd88ab39333 (diff) | |
| parent | 949db153b6466c6f7cad5a427ecea94985927311 (diff) | |
Merge 3.8-rc5 into char-misc-next
This pulls in all of the 3.8-rc5 fixes into this branch so we can test easier.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/devfreq/devfreq.c')
| -rw-r--r-- | drivers/devfreq/devfreq.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 53766f39aaddf..3b367973a8028 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -994,6 +994,11 @@ module_exit(devfreq_exit); * @freq: The frequency given to target function * @flags: Flags handed from devfreq framework. * + * Locking: This function must be called under rcu_read_lock(). opp is a rcu + * protected pointer. The reason for the same is that the opp pointer which is + * returned will remain valid for use with opp_get_{voltage, freq} only while + * under the locked area. The pointer returned must be used prior to unlocking + * with rcu_read_unlock() to maintain the integrity of the pointer. */ struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, u32 flags) |