From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Smart Subject: [PATCH 12/21] lpfc: Fix null ndlp dereference in target_reset_handler Date: Fri, 3 Apr 2015 17:12:16 -0400 Message-ID: <1428095536.6933.40.camel@myfc17> Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from cmexedge2.emulex.com ([138.239.224.100]:1284 "EHLO CMEXEDGE2.ext.emulex.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752789AbbDCVMj (ORCPT ); Fri, 3 Apr 2015 17:12:39 -0400 Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org Fix null ndlp dereference in target_reset_handler Signed-off-by: Dick Kennedy Signed-off-by: James Smart --- drivers/scsi/lpfc/lpfc_scsi.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index f623299..5612ba6 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; -- 1.7.11.7