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| author |   Justin Tee <justin.tee@broadcom.com> | 2024-10-31 15:32:10 -0700 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2024-11-02 21:45:23 -0400 |
| commit | 4c113ac05bb246813f0a3003307ad93b1c2d7d02 (patch) | |
| tree | b691a0f9ea1efa6db4b170e361b8c22f639e0fe6 | |
| parent | scsi: lpfc: Modify CGN warning signal calculation based on EDC response (diff) | |
| download | wireguard-linux-4c113ac05bb246813f0a3003307ad93b1c2d7d02.tar.xz wireguard-linux-4c113ac05bb246813f0a3003307ad93b1c2d7d02.zip | |
scsi: lpfc: Check devloss callbk done flag for potential stale NDLP ptrs
Should an rport remain in the NOTPRESENT state it is possible that
stgt_delete_work is scheduled after dev_loss_tmo_callbk. In such cases,
dev_loss_tmo_callbk would have cleaned up the NDLP object resulting in
stale ndlp pointers in lpfc_terminate_rport_io().
Check for the DEVLOSS_CALLBK_DONE flag to know if dev_loss_tmo_callbk
has been called. This is a more reliable way to avoid dereferencing
stale NDLP pointers.
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20241031223219.152342-3-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hbadisc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 9241075f72fa..a434faec3c92 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -100,6 +100,12 @@ lpfc_rport_invalid(struct fc_rport *rport) return -EINVAL; } + if (rport->flags & FC_RPORT_DEVLOSS_CALLBK_DONE) { + pr_info("**** %s: devloss_callbk_done rport x%px SID x%x\n", + __func__, rport, rport->scsi_target_id); + return -EINVAL; + } + rdata = rport->dd_data; if (!rdata) { pr_err("**** %s: NULL dd_data on rport x%px SID x%x\n", |