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scsi: lpfc: Null pointer dereference when log_verbose is set to 0xffffffff

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Kernel panic when log_verbose is set to 0xffffffff

phba->pport is dereferenced before it is initialized

Fix: Do not dereference phba->pport if it is NULL

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2017-06-01 21:07:06 -07:00 committed by Martin K. Petersen
parent b83d005e63
commit e92974f6cd
1 changed files with 4 additions and 2 deletions
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6
drivers/scsi/lpfc/lpfc_sli.c
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@ -7513,7 +7513,8 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
"(%d):0308 Mbox cmd issue - BUSY Data: "
"x%x x%x x%x x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0xffffff,
mbx->mbxCommand, phba->pport->port_state,
mbx->mbxCommand,
phba->pport ? phba->pport->port_state : 0xff,
psli->sli_flag, flag);
psli->slistat.mbox_busy++;
@ -7565,7 +7566,8 @@ lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
"(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
"x%x\n",
pmbox->vport ? pmbox->vport->vpi : 0,
mbx->mbxCommand, phba->pport->port_state,
mbx->mbxCommand,
phba->pport ? phba->pport->port_state : 0xff,
psli->sli_flag, flag);
if (mbx->mbxCommand != MBX_HEARTBEAT) {