dvb-usb: did not find the firmware file 'dvb-usb-wt220u-02.fw' (status -2). You can use <kernel_dir>/scripts/get_dvb_firmware to get the firmware
dvb-usb: found a 'WideView WT-220U PenType Receiver (Typhoon/Freecom)' in cold state, will try to load a firmware
usb 7-1: Direct firmware load for dvb-usb-wt220u-02.fw failed with error -2
usb 7-1: Falling back to sysfs fallback for: dvb-usb-wt220u-02.fw
------------[ cut here ]------------
ret
WARNING: drivers/base/firmware_loader/fallback.c:148 at fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline], CPU#0: kworker/0:0/9
WARNING: drivers/base/firmware_loader/fallback.c:148 at firmware_fallback_sysfs+0x746/0xa30 drivers/base/firmware_loader/fallback.c:238, CPU#0: kworker/0:0/9
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline]
RIP: 0010:firmware_fallback_sysfs+0x746/0xa30 drivers/base/firmware_loader/fallback.c:238
Code: b3 fb e9 5d fc ff ff e8 c8 20 b3 fb c6 05 eb 43 2a 0a 01 48 c7 c7 60 78 75 8c e8 35 22 14 fb e9 85 fc ff ff e8 ab 20 b3 fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 60 79 75 8c 4c 89 e2 e8 e5 0b 19 fb e9
RSP: 0018:ffffc900000e6910 EFLAGS: 00010283
RAX: ffffffff8613a0f5 RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc90018259000 RSI: 000000000009703d RDI: 000000000009703e
RBP: 0000000000000001 R08: ffffffff9053f5f7 R09: 1ffffffff20a7ebe
R10: dffffc0000000000 R11: fffffbfff20a7ebf R12: ffffffff8cc14b00
R13: 0000000000001770 R14: ffff88804a1a70b0 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff888124dee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558e5a2a28 CR3: 0000000031c20000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 _request_firmware+0x1052/0x1780 drivers/base/firmware_loader/main.c:898
 request_firmware+0x36/0x50 drivers/base/firmware_loader/main.c:948
 dvb_usb_download_firmware+0xb5/0x270 drivers/media/usb/dvb-usb/dvb-usb-firmware.c:93
 dvb_usb_device_init+0xde2/0x2590 drivers/media/usb/dvb-usb/dvb-usb-init.c:298
 dtt200u_usb_probe+0x5b/0x120 drivers/media/usb/dvb-usb/dtt200u.c:148
 usb_probe_interface+0x668/0xc90 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:661
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:803
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:833
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:961
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1033
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1088
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574
 device_add+0x7b6/0xb70 drivers/base/core.c:3689
 usb_set_configuration+0x1a87/0x2110 drivers/usb/core/message.c:2208
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c4/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:661
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:803
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:833
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:961
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1033
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1088
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574
 device_add+0x7b6/0xb70 drivers/base/core.c:3689
 usb_new_device+0xa08/0x16f0 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x2a1c/0x4f30 drivers/usb/core/hub.c:5953
 process_one_work+0x963/0x1720 kernel/workqueue.c:3285
 process_scheduled_works kernel/workqueue.c:3376 [inline]
 worker_thread+0xb46/0x1140 kernel/workqueue.c:3457
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>