Issuing lpfc_force_rscn twice results in an ndlp kref use-after-free call
trace.
A prior patch reworked the get/put handling by ensuring nlp_get was done
before WQE submission and a put was done in the completion path.
Unfortunately, the issue_els_rscn path had a piece of legacy code that
did a nlp_put, causing an imbalance on the ref counts.
Fixed by removing the unnecessary legacy code snippet.
Fixes: 4430f7fd09ec ("scsi: lpfc: Rework locations of ndlp reference taking")
Cc: <stable@xxxxxxxxxxxxxxx> # v5.11+
Co-developed-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_els.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 5c10416c1c75..78024f11b794 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -3538,11 +3538,6 @@ lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry)
return 1;
}
- /* This will cause the callback-function lpfc_cmpl_els_cmd to
- * trigger the release of node.
- */
- if (!(vport->fc_flag & FC_PT2PT))
- lpfc_nlp_put(ndlp);
return 0;
}
--
2.26.2
