[PATCHv13 0/9] nvme: In-band authentication support

[Chaitanya Kulkarni]

> RIP: 0010:nvme_ctrl_dhchap_ctrl_secret_show+0x16/0x40 [nvme_core]
> Code: c6 78 61 15 c0 e8 5a ed 2e c1 48 98 c3 0f 1f 80 00 00 00 00 0f 1f 
> 44 00 00 49 89 f8 48 89 d7 49 8b 40 78 48 8b 80 98 0b 00 00 <48> 8b 50 
> 68 48 85 d2 74 0f 48 c7 c6 46 60 15 c0 e8 25 ed 2e c1 48
> RSP: 0018:ffffc900054d7db8 EFLAGS: 00010282
> RAX: 0000000000000000 RBX: ffffffffc015f1e0 RCX: 0000000000000000
> RDX: ffff888178d01000 RSI: ffffffffc015f1e0 RDI: ffff888178d01000
> RBP: ffffffff822f7380 R08: ffff888103d782b8 R09: ffff8881036918b0
> R10: 0000000000020000 R11: 0000000000000000 R12: ffffc900054d7e80
> R13: ffffc900054d7e58 R14: ffff888104de1d48 R15: 0000000000000001
>   ? nvme_subsys_show_type+0x50/0x50 [nvme_core]
>   dev_attr_show+0x19/0x40
>   sysfs_kf_seq_show+0xa8/0xe0
>   seq_read_iter+0x11c/0x4b0
>   new_sync_read+0x106/0x180
>   vfs_read+0x138/0x190
>   ksys_read+0x5f/0xe0
>   do_syscall_64+0x3b/0x90
>   entry_SYSCALL_64_after_hwframe+0x44/0xae
> RIP: 0033:0x7f8fdbe71702
> Code: c0 e9 b2 fe ff ff 50 48 8d 3d ca 2a 0a 00 e8 b5 e8 01 00 0f 1f 44 
> 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 
> f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
> RSP: 002b:00007ffc70f31bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
> RAX: ffffffffffffffda RBX: 0000000000d10970 RCX: 00007f8fdbe71702
> RDX: 0000000000000fff RSI: 00007ffc70f31be0 RDI: 0000000000000003
> RBP: 00007ffc70f31be0 R08: 0000000000d10830 R09: 00007f8fdbf074e0
> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
> R13: 00007f8fdba6daf0 R14: 0000000000d185a3 R15: 0000000000d104c0
>   </TASK>
> 

Sent out a patch that fixes it, please have a look.