smc: removing ib device syz1
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sysfs group 'power' not found for kobject 'uverbs0'
WARNING: CPU: 0 PID: 28 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279
Modules linked in:
CPU: 0 PID: 28 Comm: kworker/u4:2 Not tainted 5.10.0-rc3-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 20 72 5b 89 e8 d4 7a c4 06 <0f> 0b eb 98 e8 81 6a ca ff e9 01 ff ff ff 48 89 df e8 74 6a ca ff
RSP: 0018:ffffc90000e1fa98 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff89b55880 RCX: 0000000000000000
RDX: ffff888010f99a40 RSI: ffffffff8158e0c5 RDI: fffff520001c3f45
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9e2005b
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888049a0c060
R13: ffffffff89b55e20 R14: ffff888046abc5b8 R15: ffffffff8c696c60
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c006310220 CR3: 000000001225a000 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/0xec0 drivers/base/core.c:3092
 cdev_device_del+0x19/0x100 fs/char_dev.c:573
 ib_uverbs_remove_one+0x33/0x4f0 drivers/infiniband/core/uverbs_main.c:1213
 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