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authorDick Kennedy <dick.kennedy@broadcom.com>2017-09-29 17:34:39 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2017-10-02 22:46:38 -0400
commite7981a2c725f8e237f749fa1358997707d57e32c (patch)
tree690cf3b5227160738ce29be79867865a8471f0f7 /drivers/scsi/lpfc
parentcf4c8c861074af050b51f00cac44b24195b2d0d3 (diff)
scsi: lpfc: Fix oops if nvmet_fc_register_targetport fails
if nvmet targetport registration fails, the driver encounters a NULL pointer oops in lpfc_hb_timeout_handler. To fix: if registration fails, ensure nvmet_support is cleared on the port structure. Also enhanced the log message on failure. Cc: <stable@vger.kernel.org> # 4.12+ Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc')
-rw-r--r--drivers/scsi/lpfc/lpfc_nvmet.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index ee88343f3e8c..55badeace591 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -1172,9 +1172,14 @@ lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
#endif
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC,
- "6025 Cannot register NVME targetport "
- "x%x\n", error);
+ "6025 Cannot register NVME targetport x%x: "
+ "portnm %llx nodenm %llx segs %d qs %d\n",
+ error,
+ pinfo.port_name, pinfo.node_name,
+ lpfc_tgttemplate.max_sgl_segments,
+ lpfc_tgttemplate.max_hw_queues);
phba->targetport = NULL;
+ phba->nvmet_support = 0;
lpfc_nvmet_cleanup_io_context(phba);
@@ -1186,9 +1191,11 @@ lpfc_nvmet_create_targetport(struct lpfc_hba *phba)
lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC,
"6026 Registered NVME "
"targetport: %p, private %p "
- "portnm %llx nodenm %llx\n",
+ "portnm %llx nodenm %llx segs %d qs %d\n",
phba->targetport, tgtp,
- pinfo.port_name, pinfo.node_name);
+ pinfo.port_name, pinfo.node_name,
+ lpfc_tgttemplate.max_sgl_segments,
+ lpfc_tgttemplate.max_hw_queues);
atomic_set(&tgtp->rcv_ls_req_in, 0);
atomic_set(&tgtp->rcv_ls_req_out, 0);