Hello James Smart,
The patch 8b017a30a313: "lpfc: Add support for ELS LCB." from May 21,
2015, leads to the following static checker warning:
drivers/scsi/lpfc/lpfc_els.c:5243 lpfc_els_rcv_lcb()
error: potential null dereference 'lcb_context'. (kmalloc returns null)
drivers/scsi/lpfc/lpfc_els.c
5205 if (phba->sli_rev < LPFC_SLI_REV4 ||
5206 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5207 LPFC_SLI_INTF_IF_TYPE_2)) {
5208 rjt_err = LSRJT_CMD_UNSUPPORTED;
5209 goto rjt;
5210 }
5211 lcb_context = kmalloc(sizeof(struct lpfc_lcb_context),
GFP_KERNEL);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
No check for allocation failure.
5212
5213 if (phba->hba_flag & HBA_FCOE_MODE) {
5214 rjt_err = LSRJT_CMD_UNSUPPORTED;
5215 goto rjt;
5216 }
5217 if (beacon->lcb_frequency == 0) {
5218 rjt_err = LSRJT_CMD_UNSUPPORTED;
5219 goto rjt;
5220 }
5221 if ((beacon->lcb_type != LPFC_LCB_GREEN) &&
5222 (beacon->lcb_type != LPFC_LCB_AMBER)) {
Also:
drivers/scsi/lpfc/lpfc_els.c:5261 lpfc_els_rcv_lcb()
warn: possible memory leak of 'lcb_context'
regards,
dan carpenter
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