smc: removing ib device syz2
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sysfs group 'power' not found for kobject 'issm0'
WARNING: CPU: 1 PID: 8 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Modules linked in:
CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound ib_unregister_work
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 60 72 5b 89 e8 31 61 c4 06 <0f> 0b eb 98 e8 11 7e ca ff e9 01 ff ff ff 48 89 df e8 04 7e ca ff
RSP: 0018:ffffc90000cd7a40 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff89b53740 RCX: 0000000000000000
RDX: ffff888010d24ec0 RSI: ffffffff8158d145 RDI: fffff5200019af3a
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9f309e7
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880632925d0
R13: ffffffff89b53ce0 R14: ffff88806ac6c000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5599aa000 CR3: 0000000011678000 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/0xec0 drivers/base/core.c:3094
 cdev_device_del+0x19/0x100 fs/char_dev.c:573
 ib_umad_kill_port+0x33/0x2b0 drivers/infiniband/core/user_mad.c:1326
 ib_umad_remove_one+0x179/0x280 drivers/infiniband/core/user_mad.c:1411
 remove_client_context+0xbe/0x110 drivers/infiniband/core/device.c:735
 disable_device+0x13b/0x270 drivers/infiniband/core/device.c:1249
 __ib_unregister_device+0x91/0x1a0 drivers/infiniband/core/device.c:1429
 ib_unregister_work+0x15/0x30 drivers/infiniband/core/device.c:1540
 process_one_work+0x933/0x15a0 kernel/workqueue.c:2272
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2418
 kthread+0x3af/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296