diff options
| author | Igor Pylypiv <ipylypiv@google.com> | 2021-11-02 02:28:24 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-11-19 06:26:58 +0300 |
| commit | 606c54ae975ad3af540b505b46b55a687501711f (patch) | |
| tree | 6f929f63f1bed26ea8dd1fb7d2b36708f0586baf /drivers/scsi/pm8001 | |
| parent | 60de1a67d66db11319a82bd95f11c2b12b75dee0 (diff) | |
| download | linux-606c54ae975ad3af540b505b46b55a687501711f.tar.xz | |
scsi: pm80xx: Update WARN_ON check in pm8001_mpi_build_cmd()
Starting from commit 05c6c029a44d ("scsi: pm80xx: Increase number of
supported queues") driver initializes only max_q_num queues. Do not use an
invalid queue if the WARN_ON condition is true.
Link: https://lore.kernel.org/r/20211101232825.2350233-4-ipylypiv@google.com
Fixes: 7640e1eb8c5d ("scsi: pm80xx: Make mpi_build_cmd locking consistent")
Reviewed-by: Vishakha Channapattan <vishakhavc@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/pm8001')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_hwi.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 9f95369bfe7b..f8e29d588f95 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -1325,7 +1325,9 @@ int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha, int q_index = circularQ - pm8001_ha->inbnd_q_tbl; int rv; - WARN_ON(q_index >= PM8001_MAX_INB_NUM); + if (WARN_ON(q_index >= pm8001_ha->max_q_num)) + return -EINVAL; + spin_lock_irqsave(&circularQ->iq_lock, flags); rv = pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size, &pMessage); |