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authorJohannes Thumshirn <jthumshirn@suse.de>2016-07-29 16:30:56 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2016-08-02 08:16:28 +0300
commit22466da5b4b7a82d3e5a9c21c752cae91a21dc91 (patch)
treeefb17879480d646f50d3734cf0ee2f5660ab1383 /drivers/scsi
parentd242e6680e81cea0343bd93ba862efa70a91a56c (diff)
downloadlinux-22466da5b4b7a82d3e5a9c21c752cae91a21dc91.tar.xz
lpfc: Fix possible NULL pointer dereference
Check for the existence of piocb->vport before accessing it. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: James Smart <james.smart@broadcom.com> Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 351d08ace24a..7080ce2920fd 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1323,21 +1323,18 @@ lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
{
lockdep_assert_held(&phba->hbalock);
+ BUG_ON(!piocb || !piocb->vport);
+
list_add_tail(&piocb->list, &pring->txcmplq);
piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
(piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
(piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
- (!(piocb->vport->load_flag & FC_UNLOADING))) {
- if (!piocb->vport)
- BUG();
- else
- mod_timer(&piocb->vport->els_tmofunc,
- jiffies +
- msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
- }
-
+ (!(piocb->vport->load_flag & FC_UNLOADING)))
+ mod_timer(&piocb->vport->els_tmofunc,
+ jiffies +
+ msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
return 0;
}