@@ -482,9 +482,23 @@ struct devfreq *devfreq_add_device(struct device *dev,
devfreq->profile->max_state *
devfreq->profile->max_state,
GFP_KERNEL);
+ if (!devfreq->trans_table) {
+ dev_err(dev, "%s: Unable to create transition table for the device\n",
+ __func__);
+ err = -ENOMEM;
+ goto err_dev;
+ }
+
devfreq->time_in_state = devm_kzalloc(dev, sizeof(unsigned int) *
devfreq->profile->max_state,
GFP_KERNEL);
+ if (!devfreq->time_in_state) {
+ dev_err(dev, "%s: Unable to create state for the device\n",
+ __func__);
+ err = -ENOMEM;
+ goto err_dev;
+ }
+
devfreq->last_stat_updated = jiffies;
dev_set_name(&devfreq->dev, "%s", dev_name(dev));
Since devm_kzalloc can be failed in memory pressure, check return value and handle error. Signed-off-by: Insu Yun <wuninsu@gmail.com> --- drivers/devfreq/devfreq.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)