diff options
| author |   MyungJoo Ham <myungjoo.ham@samsung.com> | 2015-10-02 12:39:23 +0900 |
|---|---|---|
| committer | MyungJoo Ham <myungjoo.ham@samsung.com> | 2016-06-22 13:51:08 +0900 |
| commit | 3e1d7fb0d279fea19eb4e36cc9bddf89264ba03f (patch) | |
| tree | 52c99f6ff840b7cd78a744e183cd2991f7add3b8 /drivers/devfreq | |
| parent | Linux 4.7-rc4 (diff) | |
| download | wireguard-linux-3e1d7fb0d279fea19eb4e36cc9bddf89264ba03f.tar.xz wireguard-linux-3e1d7fb0d279fea19eb4e36cc9bddf89264ba03f.zip | |
PM / devfreq: devm_kzalloc to have dev pointer more precisely
devm_kzalloc of devfreq's statistics data structure has been
using its parent device as the dev allocated for.
If a device's devfreq is disabled in run-time,
such allocated memory won't be freed.
Desginating more precisely with the devfreq device
pointer fixes the issue.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/devfreq')
| -rw-r--r-- | drivers/devfreq/devfreq.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 1d6c803804d5..380173738a1d 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -561,15 +561,6 @@ struct devfreq *devfreq_add_device(struct device *dev, mutex_lock(&devfreq->lock); } - devfreq->trans_table = devm_kzalloc(dev, sizeof(unsigned int) * - devfreq->profile->max_state * - devfreq->profile->max_state, - GFP_KERNEL); - devfreq->time_in_state = devm_kzalloc(dev, sizeof(unsigned long) * - devfreq->profile->max_state, - GFP_KERNEL); - devfreq->last_stat_updated = jiffies; - dev_set_name(&devfreq->dev, "%s", dev_name(dev)); err = device_register(&devfreq->dev); if (err) { @@ -578,6 +569,15 @@ struct devfreq *devfreq_add_device(struct device *dev, goto err_out; } + devfreq->trans_table = devm_kzalloc(&devfreq->dev, sizeof(unsigned int) * + devfreq->profile->max_state * + devfreq->profile->max_state, + GFP_KERNEL); + devfreq->time_in_state = devm_kzalloc(&devfreq->dev, sizeof(unsigned long) * + devfreq->profile->max_state, + GFP_KERNEL); + devfreq->last_stat_updated = jiffies; + srcu_init_notifier_head(&devfreq->transition_notifier_list); mutex_unlock(&devfreq->lock); |