pvrusb2: You need to resolve the failing condition before this driver can function.  There should be some earlier messages giving more information about the problem.
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sysfs group 'power' not found for kobject '0-0011'
WARNING: CPU: 1 PID: 78 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 78 Comm: pvrusb2-context Not tainted 5.8.0-rc6-next-20200720-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xf6/0x16e lib/dump_stack.c:118
 panic+0x2aa/0x6e1 kernel/panic.c:231
 __warn.cold+0x20/0x50 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x41/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:545
RIP: 0010:sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 80 dd 11 86 e8 cc 0d 82 ff <0f> 0b eb 98 e8 d1 c7 d7 ff e9 01 ff ff ff 48 89 df e8 c4 c7 d7 ff
RSP: 0018:ffff8881d415fb88 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff8637b680 RCX: 0000000000000000
RDX: ffff8881d4741900 RSI: ffffffff8129e643 RDI: ffffed103a82bf63
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8881db31fe8b
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d3af1020
R13: ffffffff8637bc20 R14: 1ffff1103a82bf98 R15: dffffc0000000000
 dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:801
 device_del+0x18b/0xd90 drivers/base/core.c:3075
 device_unregister+0x22/0xc0 drivers/base/core.c:3130
 i2c_unregister_device include/linux/err.h:41 [inline]
 __unregister_client drivers/i2c/i2c-core-base.c:1476 [inline]
 __unregister_client+0x95/0xa0 drivers/i2c/i2c-core-base.c:1472
 device_for_each_child+0xf9/0x170 drivers/base/core.c:3230
 i2c_del_adapter+0x37b/0x680 drivers/i2c/i2c-core-base.c:1539
 pvr2_i2c_core_done+0x69/0xb6 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:652
 pvr2_hdw_destroy+0x179/0x370 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2680
 pvr2_context_destroy+0x84/0x230 drivers/media/usb/pvrusb2/pvrusb2-context.c:70
 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline]
 pvr2_context_thread_func+0x64b/0x850 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
 kthread+0x392/0x470 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Kernel Offset: disabled
Rebooting in 86400 seconds..