pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. ------------[ cut here ]------------ sysfs group 'power' not found for kobject '0-0044' WARNING: CPU: 1 PID: 4017 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279 Modules linked in: CPU: 1 PID: 4017 Comm: pvrusb2-context Not tainted 5.11.0-rc3-next-20210115-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 a0 39 5c 89 e8 f8 91 cd 06 <0f> 0b eb 98 e8 21 44 c9 ff e9 01 ff ff ff 48 89 df e8 14 44 c9 ff RSP: 0018:ffffc900030dfb80 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffff89b70a60 RCX: 0000000000000000 RDX: ffff88801cd83800 RSI: ffffffff815b6f65 RDI: fffff5200061bf62 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815b013e R11: 0000000000000000 R12: ffff888071a4b020 R13: ffffffff89b71000 R14: 1ffff9200061bf98 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fba6de6a000 CR3: 000000001abdc000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dpm_sysfs_remove+0x97/0xb0 drivers/base/power/sysfs.c:837 device_del+0x20c/0xd40 drivers/base/core.c:3322 device_unregister+0x22/0xc0 drivers/base/core.c:3378 i2c_unregister_device include/linux/err.h:41 [inline] __unregister_client drivers/i2c/i2c-core-base.c:1606 [inline] __unregister_client+0x95/0xa0 drivers/i2c/i2c-core-base.c:1602 device_for_each_child+0xf9/0x170 drivers/base/core.c:3478 i2c_del_adapter+0x37b/0x680 drivers/i2c/i2c-core-base.c:1669 pvr2_i2c_core_done+0x69/0xc0 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:652 pvr2_hdw_destroy+0x179/0x3b0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2679 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+0x641/0x850 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296