lpfc: Fix null ndlp dereference in target_reset_handler

Signed-off-by: Dick Kennedy <dick.kennedy@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index f6232991fb37..5612ba6bf213 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -5202,10 +5202,12 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
         if (status == FAILED) {
                 lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
                         "0722 Target Reset rport failure: rdata x%p\n", rdata);
-                spin_lock_irq(shost->host_lock);
-                pnode->nlp_flag &= ~NLP_NPR_ADISC;
-                pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
-                spin_unlock_irq(shost->host_lock);
+                if (pnode) {
+                        spin_lock_irq(shost->host_lock);
+                        pnode->nlp_flag &= ~NLP_NPR_ADISC;
+                        pnode->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+                        spin_unlock_irq(shost->host_lock);
+                }
                 lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
                                           LPFC_CTX_TGT);
                 return FAST_IO_FAIL;