diff options
| author | Olof Johansson <olof@lixom.net> | 2013-01-30 10:04:23 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-01-30 10:04:56 -0800 |
| commit | 3e93093ecd0c144e86a86cc1f165221b6cd3e7fb (patch) | |
| tree | 0d6dffb90985bd90fd0ca43076a629f12e277096 /drivers/devfreq/devfreq.c | |
| parent | 43243322139194c2fea606095f82498e07536c27 (diff) | |
| parent | da660b4a3b15caea9c198c4f26d1cf7023df92fc (diff) | |
Merge tag 'vexpress/drivers-for-3.9' of git://git.linaro.org/people/pawelmoll/linux into next/drivers
From Pawel Moll:
Versatile Express related driver updates for 3.9:
* Move sp810 header to a more generic location,
mainly to share it with arm64
* tag 'vexpress/drivers-for-3.9' of git://git.linaro.org/people/pawelmoll/linux:
arm: Move sp810.h to include/linux/amba/
+ 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) |