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authorQuinn Tran <qutran@marvell.com>2021-03-29 01:52:25 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2021-03-29 22:38:58 -0400
commitf7a0ed479e66ab177801301a1a72c37775c40450 (patch)
tree10a9e2575e34b775e26424ec2dfe77205442cca2 /drivers/scsi/qla2xxx/qla_isr.c
parentscsi: qla2xxx: Fix RISC RESET completion polling (diff)
downloadlinux-dev-f7a0ed479e66ab177801301a1a72c37775c40450.tar.xz
linux-dev-f7a0ed479e66ab177801301a1a72c37775c40450.zip
scsi: qla2xxx: Fix crash in PCIe error handling
BUG: unable to handle kernel NULL pointer dereference at (null) IP: qla2x00_abort_isp+0x21/0x6b0 [qla2xxx] PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 0 PID: 1715 Comm: kworker/0:2 Tainted: GOE 4.12.14-122.37-default #1 SLE12-SP5 Hardware name: HPE Superdome Flex/Superdome Flex, BIOS Bundle:3.30.100 SFW:IP147.007.004.017.000.2009211957 09/21/2020 Workqueue: events aer_recover_work_func task: ffff9e399c14ca80 task.stack: ffffc1c58e4ac000 RIP: 0010:qla2x00_abort_isp+0x21/0x6b0 [qla2xxx] RSP: 0018:ffffc1c58e4afd50 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff9e419cdef480 RCX: 0000000000000000 RDX: ffff9e399c14ca80 RSI: 0000000000000246 RDI: ffff9e419bbc27b8 RBP: ffff9e419bbc27b8 R08: 0000000000000004 R09: 00000000a0440000 R10: 0000000000000000 R11: ffff9e399416d1a0 R12: ffff9e419cdef000 R13: ffff9e3a7cfae800 R14: ffff9e3a7cfae800 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff9e39a0000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000006cd00a005 CR4: 00000000007606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: qla2xxx_pci_slot_reset+0x141/0x160 [qla2xxx] report_slot_reset+0x41/0x80 ? merge_result.part.4+0x30/0x30 pci_walk_bus+0x70/0x90 pcie_do_recovery+0x1db/0x2e0 aer_recover_work_func+0xc2/0xf0 process_one_work+0x14c/0x390 Disable board_disable logic where driver resources are freed while OS is in the process of recovering the adapter. Link: https://lore.kernel.org/r/20210329085229.4367-9-njavali@marvell.com Tested-by: Laurence Oberman <loberman@redhat.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_isr.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 0938119e8a5f..11d6e0db07fe 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -270,12 +270,7 @@ qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
!test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
!test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
- /*
- * Schedule this (only once) on the default system
- * workqueue so that all the adapter workqueues and the
- * DPC thread can be shutdown cleanly.
- */
- schedule_work(&vha->hw->board_disable);
+ qla_schedule_eeh_work(vha);
}
return true;
} else
@@ -1657,8 +1652,6 @@ global_port_update:
case MBA_TEMPERATURE_ALERT:
ql_dbg(ql_dbg_async, vha, 0x505e,
"TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
- if (mb[1] == 0x12)
- schedule_work(&ha->board_disable);
break;
case MBA_TRANS_INSERT: