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Diffstat (limited to 'drivers/hid/hid-nvidia-shield.c')
-rw-r--r--drivers/hid/hid-nvidia-shield.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/hid/hid-nvidia-shield.c b/drivers/hid/hid-nvidia-shield.c
index c463e54dec..58b15750db 100644
--- a/drivers/hid/hid-nvidia-shield.c
+++ b/drivers/hid/hid-nvidia-shield.c
@@ -800,6 +800,8 @@ static inline int thunderstrike_led_create(struct thunderstrike *ts)
led->name = devm_kasprintf(&ts->base.hdev->dev, GFP_KERNEL,
"thunderstrike%d:blue:led", ts->id);
+ if (!led->name)
+ return -ENOMEM;
led->max_brightness = 1;
led->flags = LED_CORE_SUSPENDRESUME | LED_RETAIN_AT_SHUTDOWN;
led->brightness_get = &thunderstrike_led_get_brightness;
@@ -831,6 +833,8 @@ static inline int thunderstrike_psy_create(struct shield_device *shield_dev)
shield_dev->battery_dev.desc.name =
devm_kasprintf(&ts->base.hdev->dev, GFP_KERNEL,
"thunderstrike_%d", ts->id);
+ if (!shield_dev->battery_dev.desc.name)
+ return -ENOMEM;
shield_dev->battery_dev.psy = power_supply_register(
&hdev->dev, &shield_dev->battery_dev.desc, &psy_cfg);
@@ -915,6 +919,15 @@ err_id:
return ERR_PTR(ret);
}
+static void thunderstrike_destroy(struct thunderstrike *ts)
+{
+ led_classdev_unregister(&ts->led_dev);
+ power_supply_unregister(ts->base.battery_dev.psy);
+ if (ts->haptics_dev)
+ input_unregister_device(ts->haptics_dev);
+ ida_free(&thunderstrike_ida, ts->id);
+}
+
static int android_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field,
struct hid_usage *usage, unsigned long **bit,
@@ -1074,11 +1087,7 @@ static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id)
err_stop:
hid_hw_stop(hdev);
err_ts_create:
- power_supply_unregister(ts->base.battery_dev.psy);
- if (ts->haptics_dev)
- input_unregister_device(ts->haptics_dev);
- led_classdev_unregister(&ts->led_dev);
- ida_free(&thunderstrike_ida, ts->id);
+ thunderstrike_destroy(ts);
return ret;
}
@@ -1090,11 +1099,7 @@ static void shield_remove(struct hid_device *hdev)
ts = container_of(dev, struct thunderstrike, base);
hid_hw_close(hdev);
- power_supply_unregister(dev->battery_dev.psy);
- if (ts->haptics_dev)
- input_unregister_device(ts->haptics_dev);
- led_classdev_unregister(&ts->led_dev);
- ida_free(&thunderstrike_ida, ts->id);
+ thunderstrike_destroy(ts);
del_timer_sync(&ts->psy_stats_timer);
cancel_work_sync(&ts->hostcmd_req_work);
hid_hw_stop(hdev);