------------[ cut here ]------------ sysfs group 'power' not found for kobject '1-0044' WARNING: CPU: 0 PID: 3956 at fs/sysfs/group.c:281 sysfs_remove_group+0x16e/0x280 fs/sysfs/group.c:279 Modules linked in: CPU: 0 PID: 3956 Comm: pvrusb2-context Not tainted 5.13.0-rc2-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 37 2a c8 ff 49 8b 14 24 48 c7 c7 00 7a 22 8a 4c 89 f6 31 c0 e8 f2 a4 4c ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f0 54 80 ff 49 8d 5e 20 RSP: 0018:ffffc90002f7fa68 EFLAGS: 00010246 RAX: 00747b04ec89d300 RBX: ffff888025b32050 RCX: ffff88801e259c40 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff151c098 R08: ffffffff81654e02 R09: ffffed1017385f90 R10: ffffed1017385f90 R11: 0000000000000000 R12: ffff888025b32020 R13: dffffc0000000000 R14: ffffffff8a8e0480 R15: ffff8880240b62b8 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d38dc07188 CR3: 0000000013dd5000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: device_del+0x2ed/0xc10 drivers/base/core.c:3485 device_unregister+0x1a/0xc0 drivers/base/core.c:3541 __unregister_client+0x6d/0x90 drivers/i2c/i2c-core-base.c:1637 device_for_each_child+0xeb/0x160 drivers/base/core.c:3641 i2c_del_adapter+0x216/0x690 drivers/i2c/i2c-core-base.c:1700 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