BUG: memory leak
unreferenced object 0xffff888113562400 (size 32):
  comm "kworker/0:2", pid 8676, jiffies 4295045802 (age 18.370s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff834af3c6>] __usbhid_submit_report+0x116/0x490 drivers/hid/usbhid/hid-core.c:590
    [<ffffffff834af799>] usbhid_submit_report drivers/hid/usbhid/hid-core.c:640 [inline]
    [<ffffffff834af799>] usbhid_request+0x59/0xa0 drivers/hid/usbhid/hid-core.c:1274
    [<ffffffff834326d9>] hidinput_led_worker+0x59/0x160 drivers/hid/hid-input.c:1555
    [<ffffffff812636d9>] process_one_work+0x2c9/0x610 kernel/workqueue.c:2276
    [<ffffffff81263fc9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2422
    [<ffffffff8126d428>] kthread+0x188/0x1d0 kernel/kthread.c:319
    [<ffffffff810022cf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295