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 'i2c-1' WARNING: CPU: 1 PID: 3960 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279 Modules linked in: CPU: 1 PID: 3960 Comm: pvrusb2-context Not tainted 5.12.0-rc8-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 56 7c 89 e8 73 ed d3 06 <0f> 0b eb 98 e8 11 41 c9 ff e9 01 ff ff ff 48 89 df e8 04 41 c9 ff RSP: 0018:ffffc90002f1fa38 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffff89d9f600 RCX: 0000000000000000 RDX: ffff88801d468000 RSI: ffffffff815c4d25 RDI: fffff520005e3f39 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bdabe R11: 0000000000000000 R12: ffff88806a55e018 R13: ffffffff89d9fba0 R14: ffffffff8d008300 R15: ffffffff8d008180 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000086d1000 CR3: 0000000012c33000 CR4: 00000000001526e0 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:3398 cdev_device_del+0x19/0x100 fs/char_dev.c:573 put_i2c_dev+0x160/0x1b0 drivers/i2c/i2c-dev.c:93 i2cdev_detach_adapter.part.0+0x10f/0x1a0 drivers/i2c/i2c-dev.c:689 i2cdev_detach_adapter drivers/i2c/i2c-dev.c:647 [inline] i2cdev_notifier_call+0xad/0xc0 drivers/i2c/i2c-dev.c:704 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83 blocking_notifier_call_chain kernel/notifier.c:337 [inline] blocking_notifier_call_chain+0x67/0x90 kernel/notifier.c:325 device_del+0x1ff/0xd40 drivers/base/core.c:3395 device_unregister+0x22/0xc0 drivers/base/core.c:3454 i2c_del_adapter+0x4d6/0x680 drivers/i2c/i2c-core-base.c:1693 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+0x64b/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:294