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| author | James Smart <jsmart2021@gmail.com> | 2017-06-15 22:56:41 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-19 21:39:01 -0400 |
| commit | d41b65bcdc43fed82ea6b3c006a268df6c53e80d (patch) | |
| tree | e089eaf58cdeec2b3b5c6a6717009ff995b4b579 | |
| parent | d30ff2632333dab794d3be14e16ca8c42dfc294d (diff) | |
| download | linux-d41b65bcdc43fed82ea6b3c006a268df6c53e80d.tar.bz2 | |
scsi: lpfc: Fix system panic when express lane enabled.
There is a null pointer dereference that can happen in the FOF interrupt
handler.
The driver was not setting up cq->assoc_qp_for sli4_hba->oas_cq.
Initialize cq->assoc_qp before accessing it.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 040575adf9c6..4f2cc395597e 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -13560,6 +13560,9 @@ lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) return; } + /* Save EQ associated with this CQ */ + cq->assoc_qp = phba->sli4_hba.fof_eq; + /* Process all the entries to the OAS CQ */ while ((cqe = lpfc_sli4_cq_get(cq))) { workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe); |