usbvision_radio_close: Final disconnect
------------[ cut here ]------------
sysfs group 'power' not found for kobject 'radio21'
WARNING: CPU: 0 PID: 536 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: 0 PID: 536 Comm: v4l_id Not tainted 5.8.0-rc3-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:235
 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563
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 00 b9 11 86 e8 fc e1 82 ff <0f> 0b eb 98 e8 71 25 d8 ff e9 01 ff ff ff 48 89 df e8 64 25 d8 ff
RSP: 0018:ffff8881d5097c80 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff86378840 RCX: 0000000000000000
RDX: ffff8881d4aecb00 RSI: ffffffff8129b4e3 RDI: ffffed103aa12f82
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8881db22f50f
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d50b4b58
R13: ffffffff86378de0 R14: 0000000000000000 R15: ffff8881d50b5058
 dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:794
 device_del+0x18b/0xd20 drivers/base/core.c:2834
 device_unregister+0x22/0xc0 drivers/base/core.c:2889
 video_unregister_device+0xa2/0xc0 drivers/media/v4l2-core/v4l2-dev.c:1089
 usbvision_unregister_video+0x83/0x120 drivers/staging/media/usbvision/usbvision-video.c:1244
 usbvision_release+0x10d/0x1c0 drivers/staging/media/usbvision/usbvision-video.c:1357
 usbvision_radio_close.cold+0x2b/0x74 drivers/staging/media/usbvision/usbvision-video.c:1130
 v4l2_release+0x2e7/0x390 drivers/media/v4l2-core/v4l2-dev.c:455
 __fput+0x339/0x870 fs/file_table.c:281
 task_work_run+0xdd/0x1a0 kernel/task_work.c:123
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:216 [inline]
 __prepare_exit_to_usermode+0x19e/0x1a0 arch/x86/entry/common.c:246
 do_syscall_64+0x5c/0x90 arch/x86/entry/common.c:368
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7ff7a2e98270
Code: Bad RIP value.
RSP: 002b:00007fff5fd8f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007ff7a2e98270
RDX: 00007fff5fd8f1b0 RSI: 0000000080685600 RDI: 0000000000000003
RBP: 00007ff7a34c8698 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fff5fd8f310 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..