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| author | Olof Johansson <olof@lixom.net> | 2013-01-27 22:07:11 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-27 22:07:20 -0800 |
| commit | 6b914c998787d65022e80d6262dfd0edef58cadb (patch) | |
| tree | ec9d9605ae08e6e40664c4302a181979ab4fe1d3 /drivers/devfreq/devfreq.c | |
| parent | 1f87a404d02a96519284e1928445ca5cfe9667db (diff) | |
| parent | 949db153b6466c6f7cad5a427ecea94985927311 (diff) | |
| download | olio-linux-3.10-6b914c998787d65022e80d6262dfd0edef58cadb.tar.xz olio-linux-3.10-6b914c998787d65022e80d6262dfd0edef58cadb.zip | |
Merge tag 'v3.8-rc5' into next/cleanup
Linux 3.8-rc5
Signed-off-by: Olof Johansson <olof@lixom.net>
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 53766f39aad..3b367973a80 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) |