pvrusb2: Attached sub-driver cx25840 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: 0 PID: 3957 at fs/sysfs/group.c:281 sysfs_remove_group+0x16e/0x280 fs/sysfs/group.c:279 Modules linked in: CPU: 0 PID: 3957 Comm: pvrusb2-context Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sysfs_remove_group+0x16e/0x280 fs/sysfs/group.c:279 Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 67 7f c8 ff 49 8b 14 24 48 c7 c7 80 31 22 8a 4c 89 f6 31 c0 e8 32 6a 4e ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 50 e7 81 ff 49 8d 5e 20 RSP: 0018:ffffc9000350f988 EFLAGS: 00010246 RAX: 110686d648334000 RBX: ffff88808817b048 RCX: ffff88801e408000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff151b3a4 R08: ffffffff81653722 R09: ffffed1017345fe8 R10: ffffed1017345fe8 R11: 0000000000000000 R12: ffff88808817b018 R13: dffffc0000000000 R14: ffffffff8a8d9ce0 R15: ffff888140ed70e8 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6fdde13020 CR3: 000000007514e000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: device_del+0x2ed/0xc10 drivers/base/core.c:3484 cdev_device_del+0x22/0xe0 fs/char_dev.c:573 put_i2c_dev drivers/i2c/i2c-dev.c:93 [inline] i2cdev_detach_adapter+0x24f/0x2c0 drivers/i2c/i2c-dev.c:689 i2cdev_notifier_call+0x38/0x60 drivers/i2c/i2c-dev.c:704 notifier_call_chain kernel/notifier.c:83 [inline] blocking_notifier_call_chain+0x108/0x1b0 kernel/notifier.c:337 device_del+0x2de/0xc10 drivers/base/core.c:3481 device_unregister+0x1a/0xc0 drivers/base/core.c:3540 i2c_del_adapter+0x370/0x7f0 drivers/i2c/i2c-core-base.c:1693 pvr2_i2c_core_done+0x55/0xb0 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:652 pvr2_hdw_destroy+0x150/0x2b0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2679 pvr2_context_destroy+0x7a/0x3c0 drivers/media/usb/pvrusb2/pvrusb2-context.c:70 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline] pvr2_context_thread_func+0x41d/0xb30 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 kthread+0x39a/0x3c0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294