From 8e9a3250dc61ac1a3b8e4c98ed255fdb4d40cddc Mon Sep 17 00:00:00 2001 From: James Smart Date: Mon, 1 Mar 2021 09:18:09 -0800 Subject: [PATCH] scsi: lpfc: Fix use after free in lpfc_els_free_iocb There are several code paths where the following sequence occurs: - An ndlp pointer is assigned to an iocb via a nlp_get() - An attempt is made to issue the iocb, but it fails - The failure case does a put on the ndlp then calls lpfc_els_free_iocb() The put may free the ndlp structure, but the els_free_iocb may reference the now-stale ndlp pointer and cause a crash. Fix by ensuring that the lpfc_els_free_iocb() occurs before the lpfc_nlp_put(). While fixing, refactor the code to better ensure this calling sequence. Link: https://lore.kernel.org/r/20210301171821.3427-11-jsmart2021@gmail.com Co-developed-by: Dick Kennedy Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 348 ++++++++++++++++++++++--------------------- 1 file changed, 177 insertions(+), 171 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index de67ba7..08de349 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -1342,12 +1342,17 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, phba->sli3_options, 0, 0); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto out; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_issue_fabric_iocb(phba, elsiocb); - if (rc == IOCB_ERROR) + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); lpfc_nlp_put(ndlp); + return 1; + } phba->hba_flag |= HBA_FLOGI_ISSUED; @@ -1377,11 +1382,7 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, vport->fc_myDID = did; } - if (!rc) - return 0; - out: - lpfc_els_free_iocb(phba, elsiocb); - return 1; + return 0; } /** @@ -2152,19 +2153,19 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) "Issue PLOGI: did:x%x refcnt %d", did, kref_read(&ndlp->kref), 0); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto io_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } ret = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); if (ret) { + lpfc_els_free_iocb(phba, elsiocb); lpfc_nlp_put(ndlp); - goto io_err; + return 1; } - return 0; - io_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; + return 0; } /** @@ -2458,12 +2459,17 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, "Issue PRLI: did:x%x refcnt %d", ndlp->nlp_DID, kref_read(&ndlp->kref), 0); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto io_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + goto err; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto node_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + goto err; + } /* The driver supports 2 FC4 types. Make sure @@ -2475,13 +2481,10 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, else return 0; - node_err: - lpfc_nlp_put(ndlp); - io_err: +err: spin_lock_irq(&ndlp->lock); ndlp->nlp_flag &= ~NLP_PRLI_SND; spin_unlock_irq(&ndlp->lock); - lpfc_els_free_iocb(phba, elsiocb); return 1; } @@ -2765,24 +2768,27 @@ lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_flag |= NLP_ADISC_SND; spin_unlock_irq(&ndlp->lock); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + goto err; + } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue ADISC: did:x%x refcnt %d", ndlp->nlp_DID, kref_read(&ndlp->kref), 0); rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + goto err; + } + return 0; - io_err: - lpfc_nlp_put(ndlp); - node_err: +err: spin_lock_irq(&ndlp->lock); ndlp->nlp_flag &= ~NLP_ADISC_SND; spin_unlock_irq(&ndlp->lock); - lpfc_els_free_iocb(phba, elsiocb); return 1; } @@ -2983,15 +2989,20 @@ lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, ndlp->nlp_flag &= ~NLP_ISSUE_LOGO; spin_unlock_irq(&ndlp->lock); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + goto err; + } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue LOGO: did:x%x refcnt %d", ndlp->nlp_DID, kref_read(&ndlp->kref), 0); rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + goto err; + } spin_lock_irq(&ndlp->lock); ndlp->nlp_prev_state = ndlp->nlp_state; @@ -2999,13 +3010,10 @@ lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE); return 0; - io_err: - lpfc_nlp_put(ndlp); - node_err: +err: spin_lock_irq(&ndlp->lock); ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(&ndlp->lock); - lpfc_els_free_iocb(phba, elsiocb); return 1; } @@ -3221,25 +3229,24 @@ lpfc_issue_els_scr(struct lpfc_vport *vport, uint8_t retry) phba->fc_stat.elsXmitSCR++; elsiocb->iocb_cmpl = lpfc_cmpl_els_disc_cmd; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue SCR: did:x%x refcnt %d", ndlp->nlp_DID, kref_read(&ndlp->kref), 0); rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } /* Keep the ndlp just in case RDF is being sent */ return 0; - - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; } /** @@ -3321,16 +3328,21 @@ lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) phba->fc_stat.elsXmitRSCN++; elsiocb->iocb_cmpl = lpfc_cmpl_els_cmd; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue RSCN: did:x%x", ndlp->nlp_DID, 0, 0); rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } /* This will cause the callback-function lpfc_cmpl_els_cmd to * trigger the release of node. @@ -3338,11 +3350,6 @@ lpfc_issue_els_rscn(struct lpfc_vport *vport, uint8_t retry) if (!(vport->fc_flag & FC_PT2PT)) lpfc_nlp_put(ndlp); return 0; -io_err: - lpfc_nlp_put(ndlp); -node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; } /** @@ -3437,8 +3444,8 @@ lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) * lpfc_els_free_iocb routine to trigger the release of * the node. */ - lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); return 1; } /* This will cause the callback-function lpfc_cmpl_els_cmd to @@ -3518,23 +3525,22 @@ lpfc_issue_els_rdf(struct lpfc_vport *vport, uint8_t retry) elsiocb->iocb_cmpl = lpfc_cmpl_els_disc_cmd; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return -EIO; + } lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_CMD, "Issue RDF: did:x%x refcnt %d", ndlp->nlp_DID, kref_read(&ndlp->kref), 0); rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return -EIO; + } return 0; - - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return -EIO; } /** @@ -4821,12 +4827,17 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, phba->fc_stat.elsXmitACC++; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } /* Xmit ELS ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, @@ -4837,12 +4848,6 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi, vport->fc_flag); return 0; - -io_err: - lpfc_nlp_put(ndlp); -node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; } /** @@ -4914,20 +4919,19 @@ lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, phba->fc_stat.elsXmitLSRJT++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } return 0; - - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; } /** @@ -4997,12 +5001,17 @@ lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } /* Xmit ELS ACC response tag */ lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS, @@ -5013,12 +5022,6 @@ lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi, vport->fc_flag); return 0; - -io_err: - lpfc_nlp_put(ndlp); -node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; } /** @@ -5172,19 +5175,19 @@ lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; - return 0; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; + return 0; } /** @@ -5279,20 +5282,19 @@ lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } return 0; - - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; } /** @@ -5394,19 +5396,19 @@ lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data, phba->fc_stat.elsXmitACC++; elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; - return 0; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; + return 0; } /** @@ -6050,8 +6052,8 @@ lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); if (rc == IOCB_ERROR) { - lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); } goto free_rdp_context; @@ -6082,8 +6084,8 @@ error: rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); if (rc == IOCB_ERROR) { - lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); } free_rdp_context: @@ -6295,16 +6297,16 @@ lpfc_els_lcb_rsp(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) phba->fc_stat.elsXmitACC++; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; - - rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (!rc) + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); goto out; + } - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); + rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + } out: kfree(lcb_context); return; @@ -6340,8 +6342,8 @@ error: rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); if (rc == IOCB_ERROR) { - lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); } free_lcb_context: kfree(lcb_context); @@ -7407,18 +7409,17 @@ lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; phba->fc_stat.elsXmitACC++; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + } return; - - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); } /** @@ -7567,8 +7568,8 @@ lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); if (rc == IOCB_ERROR) { - lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); } return 0; @@ -7645,8 +7646,8 @@ lpfc_issue_els_rrq(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, return 0; io_err: - lpfc_nlp_put(ndlp); lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); return 1; } @@ -7743,19 +7744,19 @@ lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp; phba->fc_stat.elsXmitACC++; elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + return 1; + } rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; - return 0; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + return 1; + } - io_err: - lpfc_nlp_put(ndlp); - node_err: - lpfc_els_free_iocb(phba, elsiocb); - return 1; + return 0; } /** @@ -9661,11 +9662,14 @@ lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, did, 0, 0); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); goto err_out; + } rc = lpfc_issue_fabric_iocb(phba, elsiocb); if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); lpfc_nlp_put(ndlp); goto err_out; } @@ -9674,7 +9678,6 @@ lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, return 0; err_out: - lpfc_els_free_iocb(phba, elsiocb); lpfc_vport_set_state(vport, FC_VPORT_FAILED); lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, "0256 Issue FDISC: Cannot send IOCB\n"); @@ -9782,20 +9785,23 @@ lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) ndlp->nlp_flag |= NLP_LOGO_SND; spin_unlock_irq(&ndlp->lock); elsiocb->context1 = lpfc_nlp_get(ndlp); - if (!elsiocb->context1) - goto node_err; + if (!elsiocb->context1) { + lpfc_els_free_iocb(phba, elsiocb); + goto err; + } + rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0); - if (rc == IOCB_ERROR) - goto io_err; + if (rc == IOCB_ERROR) { + lpfc_els_free_iocb(phba, elsiocb); + lpfc_nlp_put(ndlp); + goto err; + } return 0; - io_err: - lpfc_nlp_put(ndlp); - node_err: +err: spin_lock_irq(&ndlp->lock); ndlp->nlp_flag &= ~NLP_LOGO_SND; spin_unlock_irq(&ndlp->lock); - lpfc_els_free_iocb(phba, elsiocb); return 1; } -- 2.7.4