diff options
Diffstat (limited to 'drivers/hid/hid-holtekff.c')
| -rw-r--r-- | drivers/hid/hid-holtekff.c | 36 |
1 files changed, 15 insertions, 21 deletions
diff --git a/drivers/hid/hid-holtekff.c b/drivers/hid/hid-holtekff.c index 9a8f05124525..8619b80c834c 100644 --- a/drivers/hid/hid-holtekff.c +++ b/drivers/hid/hid-holtekff.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Force feedback support for Holtek On Line Grip based gamepads * @@ -8,19 +9,6 @@ */ /* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/hid.h> @@ -32,10 +20,6 @@ #ifdef CONFIG_HOLTEK_FF -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Anssi Hannula <anssi.hannula@iki.fi>"); -MODULE_DESCRIPTION("Force feedback support for Holtek On Line Grip based devices"); - /* * These commands and parameters are currently known: * @@ -98,7 +82,7 @@ static void holtekff_send(struct holtekff_device *holtekff, holtekff->field->value[i] = data[i]; } - dbg_hid("sending %*ph\n", 7, data); + dbg_hid("sending %7ph\n", data); hid_hw_request(hid, holtekff->field->report, HID_REQ_SET_REPORT); } @@ -140,13 +124,19 @@ static int holtekff_init(struct hid_device *hid) { struct holtekff_device *holtekff; struct hid_report *report; - struct hid_input *hidinput = list_entry(hid->inputs.next, - struct hid_input, list); + struct hid_input *hidinput; struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; - struct input_dev *dev = hidinput->input; + struct input_dev *dev; int error; + if (list_empty(&hid->inputs)) { + hid_err(hid, "no inputs found\n"); + return -ENODEV; + } + hidinput = list_entry(hid->inputs.next, struct hid_input, list); + dev = hidinput->input; + if (list_empty(report_list)) { hid_err(hid, "no output report found\n"); return -ENODEV; @@ -223,3 +213,7 @@ static struct hid_driver holtek_driver = { .probe = holtek_probe, }; module_hid_driver(holtek_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Anssi Hannula <anssi.hannula@iki.fi>"); +MODULE_DESCRIPTION("Force feedback support for Holtek On Line Grip based devices"); |