[PATCH -next 07/19] HID: shield: Use devm_hid_hw_start_and_open in shield_probe()

[Li Zetao <lizetao1@huawei.com>]

Currently, the shield module needs to maintain hid resources
by itself. Consider using devm_hid_hw_start_and_open helper to ensure
that hid resources are consistent with the device life cycle, and release
hid resources before device is released. At the same time, it can avoid
the goto-release encoding, drop the err_stop and err_ts_create lables, and
directly return the error code when an error occurs.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
---
 drivers/hid/hid-nvidia-shield.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/hid/hid-nvidia-shield.c b/drivers/hid/hid-nvidia-shield.c
index ff9078ad1961..747996a21dd9 100644
--- a/drivers/hid/hid-nvidia-shield.c
+++ b/drivers/hid/hid-nvidia-shield.c
@@ -1070,27 +1070,15 @@ static int shield_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	ts = container_of(shield_dev, struct thunderstrike, base);
 
-	ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT);
+	ret = devm_hid_hw_start_and_open(hdev, HID_CONNECT_HIDINPUT);
 	if (ret) {
-		hid_err(hdev, "Failed to start HID device\n");
-		goto err_ts_create;
-	}
-
-	ret = hid_hw_open(hdev);
-	if (ret) {
-		hid_err(hdev, "Failed to open HID device\n");
-		goto err_stop;
+		thunderstrike_destroy(ts);
+		return ret;
 	}
 
 	thunderstrike_device_init_info(shield_dev);
 
 	return ret;
-
-err_stop:
-	hid_hw_stop(hdev);
-err_ts_create:
-	thunderstrike_destroy(ts);
-	return ret;
 }
 
 static void shield_remove(struct hid_device *hdev)
@@ -1100,11 +1088,9 @@ static void shield_remove(struct hid_device *hdev)
 
 	ts = container_of(dev, struct thunderstrike, base);
 
-	hid_hw_close(hdev);
 	thunderstrike_destroy(ts);
 	del_timer_sync(&ts->psy_stats_timer);
 	cancel_work_sync(&ts->hostcmd_req_work);
-	hid_hw_stop(hdev);
 }
 
 static const struct hid_device_id shield_devices[] = {
-- 
2.34.1