diff options
| author | James Smart <james.smart@emulex.com> | 2012-05-09 21:18:40 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-05-17 11:08:22 +0100 |
| commit | 75ad83a452116c00c092bdc4c842c4401cd24080 (patch) | |
| tree | db494dfcd6b8984ed5d6554c02408a2b3a2f31a3 | |
| parent | cc459f19e32bdc783f9f0ce5c872c1ff399e3e82 (diff) | |
| download | linux-75ad83a452116c00c092bdc4c842c4401cd24080.tar.bz2 | |
[SCSI] lpfc 8.3.31: Fix driver crash during back-to-back ramp events
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index d5f3fcc3e548..9434b0379abe 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -399,6 +399,14 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) num_rsrc_err = atomic_read(&phba->num_rsrc_err); num_cmd_success = atomic_read(&phba->num_cmd_success); + /* + * The error and success command counters are global per + * driver instance. If another handler has already + * operated on this error event, just exit. + */ + if (num_rsrc_err == 0) + return; + vports = lpfc_create_vport_work_array(phba); if (vports != NULL) for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |