Since devm_kzalloc can be failed in memory pressure,
check return value and handle error.
Signed-off-by: Insu Yun <wuni...@gmail.com>
---
drivers/devfreq/devfreq.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index ca1b362..814089f 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -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));
--
1.9.1
--
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