--- zzzz-none-000/linux-3.10.107/drivers/hid/hid-a4tech.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/hid/hid-a4tech.c 2021-02-04 17:41:59.000000000 +0000 @@ -90,11 +90,10 @@ struct a4tech_sc *a4; int ret; - a4 = kzalloc(sizeof(*a4), GFP_KERNEL); + a4 = devm_kzalloc(&hdev->dev, sizeof(*a4), GFP_KERNEL); if (a4 == NULL) { hid_err(hdev, "can't alloc device descriptor\n"); - ret = -ENOMEM; - goto err_free; + return -ENOMEM; } a4->quirks = id->driver_data; @@ -104,27 +103,16 @@ ret = hid_parse(hdev); if (ret) { hid_err(hdev, "parse failed\n"); - goto err_free; + return ret; } ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (ret) { hid_err(hdev, "hw start failed\n"); - goto err_free; + return ret; } return 0; -err_free: - kfree(a4); - return ret; -} - -static void a4_remove(struct hid_device *hdev) -{ - struct a4tech_sc *a4 = hid_get_drvdata(hdev); - - hid_hw_stop(hdev); - kfree(a4); } static const struct hid_device_id a4_devices[] = { @@ -144,7 +132,6 @@ .input_mapped = a4_input_mapped, .event = a4_event, .probe = a4_probe, - .remove = a4_remove, }; module_hid_driver(a4_driver);