pvrusb2: Device being rendered inoperable
cx25840 0-0044: Unable to detect h/w, assuming cx23887
cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a)
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 '0-0044'
WARNING: CPU: 0 PID: 2389 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Modules linked in:
CPU: 0 PID: 2389 Comm: pvrusb2-context Not tainted 5.12.0-rc7-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 db 12 86 e8 9b 68 ec 03 <0f> 0b eb 98 e8 f1 82 d5 ff e9 01 ff ff ff 48 89 df e8 e4 82 d5 ff
RSP: 0018:ffffc9000692fb80 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff863d7b00 RCX: 0000000000000000
RDX: ffff888109d60000 RSI: ffffffff8129f7d3 RDI: fffff52000d25f62
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff814ab6db R11: 0000000000000000 R12: ffff8881010fe020
R13: ffffffff863d80a0 R14: 1ffff92000d25f98 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3cad723740 CR3: 0000000007825000 CR4: 00000000001506f0
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
 device_unregister+0x22/0xc0 drivers/base/core.c:3454
 i2c_unregister_device include/linux/err.h:41 [inline]
 __unregister_client drivers/i2c/i2c-core-base.c:1607 [inline]
 __unregister_client+0x95/0xa0 drivers/i2c/i2c-core-base.c:1603
 device_for_each_child+0xf9/0x170 drivers/base/core.c:3554
 i2c_del_adapter+0x37b/0x680 drivers/i2c/i2c-core-base.c:1670
 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+0x38c/0x460 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294