dvb-usb: found a 'TerraTec Cinergy S USB' in cold state, will try to load a firmware
usb 2-1: Direct firmware load for dvb-usb-dw2102.fw failed with error -2
usb 2-1: Falling back to sysfs fallback for: dvb-usb-dw2102.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#1: kworker/1:3/5359
WARNING: drivers/base/firmware_loader/fallback.c:148 at firmware_fallback_sysfs+0x755/0xa40 drivers/base/firmware_loader/fallback.c:238, CPU#1: kworker/1:3/5359
Modules linked in:
CPU: 1 UID: 0 PID: 5359 Comm: kworker/1:3 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/13/2026
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+0x755/0xa40 drivers/base/firmware_loader/fallback.c:238
Code: 99 fb e9 48 fc ff ff e8 89 f9 99 fb c6 05 98 94 14 0a 01 48 c7 c7 40 30 76 8c e8 26 47 fb fa e9 70 fc ff ff e8 6c f9 99 fb 90 <0f> 0b 90 4c 89 f7 48 c7 c6 40 31 76 8c 4c 89 e2 e8 c6 bf ff fa e9
RSP: 0018:ffffc90003676980 EFLAGS: 00010283
RAX: ffffffff862c7814 RBX: dffffc0000000000 RCX: 0000000000100000
RDX: ffffc9001922f000 RSI: 000000000005573a RDI: 000000000005573b
RBP: 0000000000000001 R08: ffffffff905788f7 R09: 1ffffffff20af11e
R10: dffffc0000000000 R11: fffffbfff20af11f R12: ffffffff8cc35100
R13: 0000000000001770 R14: ffff8880286050b0 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff888125054000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000404030 CR3: 00000000363ca000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 _request_firmware+0x1049/0x1780 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+0xddf/0x2570 drivers/media/usb/dvb-usb/dvb-usb-init.c:298
 dw2102_probe+0x2c/0x270 drivers/media/usb/dvb-usb/dw2102.c:2590
 usb_probe_interface+0x653/0xc60 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3772
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3772
 usb_new_device+0x99d/0x1620 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+0x28e8/0x4d30 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>