HID: hid-sensor-hub: move to devm_kzalloc

devm_kzalloc() will manage resources freeing and allows to make error path
smaller and nicer.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 5 insertions, 12 deletions

diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 7ebef9c7444a..1877a2552483 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -477,16 +477,15 @@ static int sensor_hub_probe(struct hid_device *hdev,
         struct hid_field *field;
         int dev_cnt;
 
-        sd = kzalloc(sizeof(struct sensor_hub_data), GFP_KERNEL);
+        sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL);
         if (!sd) {
                 hid_err(hdev, "cannot allocate Sensor data\n");
                 return -ENOMEM;
         }
-        sd->hsdev = kzalloc(sizeof(struct hid_sensor_hub_device), GFP_KERNEL);
+        sd->hsdev = devm_kzalloc(&hdev->dev, sizeof(*sd->hsdev), GFP_KERNEL);
         if (!sd->hsdev) {
                 hid_err(hdev, "cannot allocate hid_sensor_hub_device\n");
-                ret = -ENOMEM;
-                goto err_free_hub;
+                return -ENOMEM;
         }
         hid_set_drvdata(hdev, sd);
         sd->hsdev->hdev = hdev;
@@ -498,14 +497,14 @@ static int sensor_hub_probe(struct hid_device *hdev,
         ret = hid_parse(hdev);
         if (ret) {
                 hid_err(hdev, "parse failed\n");
-                goto err_free;
+                return ret;
         }
         INIT_LIST_HEAD(&hdev->inputs);
 
         ret = hid_hw_start(hdev, 0);
         if (ret) {
                 hid_err(hdev, "hw start failed\n");
-                goto err_free;
+                return ret;
         }
         ret = hid_hw_open(hdev);
         if (ret) {
@@ -570,10 +569,6 @@ err_close:
         hid_hw_close(hdev);
 err_stop_hw:
         hid_hw_stop(hdev);
-err_free:
-        kfree(sd->hsdev);
-err_free_hub:
-        kfree(sd);
 
         return ret;
 }
@@ -597,8 +592,6 @@ static void sensor_hub_remove(struct hid_device *hdev)
         kfree(data->hid_sensor_hub_client_devs);
         hid_set_drvdata(hdev, NULL);
         mutex_destroy(&data->mutex);
-        kfree(data->hsdev);
-        kfree(data);
 }
 
 static const struct hid_device_id sensor_hub_devices[] = {