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[SCSI] lpfc 8.3.31: Fix driver crash during back-to-back ramp events

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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>
This commit is contained in:
James Smart 2012-05-09 21:18:40 -04:00 committed by James Bottomley
parent cc459f19e3
commit 75ad83a452
1 changed files with 8 additions and 0 deletions
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8
drivers/scsi/lpfc/lpfc_scsi.c
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@ -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++) {