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* [smatch stuff] re: [SCSI] lpfc 8.3.27: Changed worst case mailbox timeout
@ 2011-10-31  6:58 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2011-10-31  6:58 UTC (permalink / raw)
  To: James Smart; +Cc: linux-scsi

Smatch complains about a183a15f "[SCSI] lpfc 8.3.27: Changed worst
case mailbox timeout".

drivers/scsi/lpfc/lpfc_sli.c +2220 lpfc_sli_handle_mb_event(66)
	error: we previously assumed 'pmb->vport' could be null (see line 2177)

+                                       pmb->vport ? pmb->vport->vpi : 0,
                                        ^^^^^^^^^^
Checked.

+                                       pmbox->mbxCommand,
+                                       lpfc_sli_config_mbox_subsys_get(phba,
+                                                                       pmb),
+                                       lpfc_sli_config_mbox_opcode_get(phba,
+                                                                       pmb),
+                                       pmbox->mbxStatus,
+                                       pmbox->un.varWords[0],
+                                       pmb->vport->port_state);
                                        ^^^^^^^^^^^^
Dereferenced without checking.

regards,
dan carpenter


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2011-10-31  6:58 [smatch stuff] re: [SCSI] lpfc 8.3.27: Changed worst case mailbox timeout Dan Carpenter

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