diff options
Diffstat (limited to 'drivers/hid/hid-gaff.c')
| -rw-r--r-- | drivers/hid/hid-gaff.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c index 2d8cead3adca..c6db8b6cc8ee 100644 --- a/drivers/hid/hid-gaff.c +++ b/drivers/hid/hid-gaff.c @@ -1,10 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Force feedback support for GreenAsia (Product ID 0x12) based devices * * The devices are distributed under various names and the same USB device ID * can be used in many game controllers. * - * * 0e8f:0012 "GreenAsia Inc. USB Joystick " * - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635. * @@ -12,19 +12,6 @@ */ /* - * 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/input.h> @@ -77,14 +64,20 @@ static int gaff_init(struct hid_device *hid) { struct gaff_device *gaff; 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 list_head *report_ptr = 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 reports found\n"); return -ENODEV; @@ -176,4 +169,5 @@ static struct hid_driver ga_driver = { }; module_hid_driver(ga_driver); +MODULE_DESCRIPTION("Force feedback support for GreenAsia (Product ID 0x12) based devices"); MODULE_LICENSE("GPL"); |