pvrusb2: Giving up since device microcontroller firmware appears to be missing.
pvrusb2: Failed to submit write-control URB status=-19
usb 4-1: Direct firmware load for v4l-pvrusb2-29xxx-01.fw failed with error -2
usb 4-1: Falling back to sysfs fallback for: v4l-pvrusb2-29xxx-01.fw
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2337 at drivers/base/firmware_loader/fallback.c:148 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline]
WARNING: CPU: 1 PID: 2337 at drivers/base/firmware_loader/fallback.c:148 firmware_fallback_sysfs+0x6d3/0xbe0 drivers/base/firmware_loader/fallback.c:238
Modules linked in:
CPU: 1 UID: 0 PID: 2337 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:148 [inline]
RIP: 0010:firmware_fallback_sysfs+0x6d3/0xbe0 drivers/base/firmware_loader/fallback.c:238
Code: 7d fb e9 da f9 ff ff e8 db 19 9f fb e8 e6 18 65 fb 31 ff 89 c3 89 c6 e8 0b 15 9f fb 85 db 0f 84 17 fb ff ff e8 be 19 9f fb 90 <0f> 0b 90 48 c7 c6 c0 54 43 8c 4c 89 e2 4c 89 f7 e8 c8 17 f9 ff e9
RSP: 0018:ffffc90005cb78e0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000fffffff5 RCX: ffffffff861c7465
RDX: ffff88802b728000 RSI: ffffffff861c7472 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff5 R11: 0000000000002c10 R12: ffffffff8caa5060
R13: ffff88807672dfc0 R14: ffff88807a5ba0b0 R15: 0000000000001770
FS:  0000000000000000(0000) GS:ffff8881247b8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000404030 CR3: 000000000e380000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 000000000000000e DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 _request_firmware+0xfe9/0x1470 drivers/base/firmware_loader/main.c:906
 request_firmware+0x35/0x50 drivers/base/firmware_loader/main.c:957
 pvr2_locate_firmware+0x8f/0x520 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:1359
 pvr2_upload_firmware1+0x1c5/0xa00 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+0x3e6/0x4510 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
 pvr2_context_thread_func+0x253/0x9b0 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>