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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-10-25 10:06:04 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-10-25 10:06:04 +0200 |
| commit | 0fc4f78f44e6c6148cee32456f0d0023ec1c1fd8 (patch) | |
| tree | 71c906207227dd8753a0191db9304035ec3471a4 /drivers/devfreq/devfreq.c | |
| parent | 78010cd9736ec571796f4404524ed575b81238b9 (diff) | |
| parent | 5481e27f6fd06b7cb902072e81d6b083db8155eb (diff) | |
Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc
Backmerge latest drm-next to have a baseline for the
s/fence/dma_fence/ patch from Chris.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/devfreq/devfreq.c')
| -rw-r--r-- | drivers/devfreq/devfreq.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 478006b7764a..bf3ea7603a58 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -137,6 +137,10 @@ static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq) cur_time = jiffies; + /* Immediately exit if previous_freq is not initialized yet. */ + if (!devfreq->previous_freq) + goto out; + prev_lev = devfreq_get_freq_level(devfreq, devfreq->previous_freq); if (prev_lev < 0) { ret = prev_lev; @@ -594,17 +598,19 @@ struct devfreq *devfreq_add_device(struct device *dev, if (devfreq->governor) err = devfreq->governor->event_handler(devfreq, DEVFREQ_GOV_START, NULL); - mutex_unlock(&devfreq_list_lock); if (err) { dev_err(dev, "%s: Unable to start governor for the device\n", __func__); goto err_init; } + mutex_unlock(&devfreq_list_lock); return devfreq; err_init: list_del(&devfreq->node); + mutex_unlock(&devfreq_list_lock); + device_unregister(&devfreq->dev); err_out: return ERR_PTR(err); |