pvrusb2: Did you install the pvrusb2 firmware files in their proper location?
pvrusb2: request_firmware unable to locate fx2 controller file v4l-pvrusb2-73xxx-01.fw
pvrusb2: Failure uploading firmware1
pvrusb2: Device initialization was not successful.
pvrusb2: Giving up since device microcontroller firmware appears to be missing.
usb 5-1: Direct firmware load for v4l-pvrusb2-73xxx-01.fw failed with error -2
usb 5-1: Falling back to sysfs fallback for: v4l-pvrusb2-73xxx-01.fw
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2309 at drivers/base/firmware_loader/fallback.c:144 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:144 [inline]
WARNING: CPU: 1 PID: 2309 at drivers/base/firmware_loader/fallback.c:144 firmware_fallback_sysfs+0x70f/0x930 drivers/base/firmware_loader/fallback.c:234
Modules linked in:
CPU: 1 PID: 2309 Comm: pvrusb2-context Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:144 [inline]
RIP: 0010:firmware_fallback_sysfs+0x70f/0x930 drivers/base/firmware_loader/fallback.c:234
Code: e7 e8 95 7d f9 ff 41 89 ef eb c1 e8 2b d3 77 fc c6 05 0c 18 02 09 01 48 c7 c7 c0 7d 03 8b e8 58 5a 03 05 eb ac e8 11 d3 77 fc <0f> 0b 4c 89 f7 48 c7 c6 a0 7e 03 8b 4c 89 e2 e8 85 49 07 05 eb 91
RSP: 0018:ffffc90006247750 EFLAGS: 00010293
RAX: ffffffff8508fbdf RBX: dffffc0000000000 RCX: ffff888029698000
RDX: 0000000000000000 RSI: 00000000fffffff5 RDI: 0000000000000000
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff215c477
R10: fffffbfff215c477 R11: 1ffffffff215c476 R12: ffffffff8b5ed7c0
R13: 0000000000001770 R14: ffff88802fcee0a8 R15: 00000000fffffff5
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0a217e7dac CR3: 000000007e2d4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 _request_firmware+0xcad/0x1290 drivers/base/firmware_loader/main.c:884
 request_firmware+0x32/0x50 drivers/base/firmware_loader/main.c:933
 pvr2_locate_firmware+0xb3/0x500 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:1359
 pvr2_upload_firmware1+0x1b1/0x900 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:1426
 pvr2_hdw_setup_low drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2107 [inline]
 pvr2_hdw_setup drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2261 [inline]
 pvr2_hdw_initialize+0x3dc/0x3a80 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
 pvr2_context_thread_func+0x47e/0xab0 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>