scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue

System crash when qla2x00_start_sp(sp) returns error code EGAIN and wake_up

gets called for uninitialized wait queue sp->nvme_ls_waitq.

qla2xxx [0000:37:00.1]-2121:5: Returning existing qpair of ffff8ae2c0513400 for idx=0

qla2xxx [0000:37:00.1]-700e:5: qla2x00_start_sp failed = 11

BUG: unable to handle kernel NULL pointer dereference at 0000000000000000

PGD 0 P4D 0

Oops: 0000 [#1] SMP NOPTI

Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 09/03/2021

Workqueue: nvme-wq nvme_fc_connect_ctrl_work [nvme_fc]

RIP: 0010:__wake_up_common+0x4c/0x190

RSP: 0018:ffff95f3e0cb7cd0 EFLAGS: 00010086

RAX: 0000000000000000 RBX: ffff8b08d3b26328 RCX: 0000000000000000

RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8b08d3b26320

RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffe8

R10: 0000000000000000 R11: ffff95f3e0cb7a60 R12: ffff95f3e0cb7d20

R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000

FS: 0000000000000000(0000) GS:ffff8b2fdf6c0000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 0000000000000000 CR3: 0000002f1e410002 CR4: 00000000007706e0

DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

PKRU: 55555554

Call Trace:

__wake_up_common_lock+0x7c/0xc0

qla_nvme_ls_req+0x355/0x4c0 [qla2xxx]

? __nvme_fc_send_ls_req+0x260/0x380 [nvme_fc]

? nvme_fc_send_ls_req.constprop.42+0x1a/0x45 [nvme_fc]

? nvme_fc_connect_ctrl_work.cold.63+0x1e3/0xa7d [nvme_fc]

Remove unused nvme_ls_waitq wait queue. nvme_ls_waitq logic was removed

previously in the commits tagged Fixed: below.