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From: Dan Carpenter <dan.carpenter@oracle.com>
To: james.smart@emulex.com
Cc: linux-scsi@vger.kernel.org
Subject: re: [SCSI] lpfc 8.3.28: Add support for ABTS failure handling
Date: Fri, 16 Dec 2011 23:27:45 +0300	[thread overview]
Message-ID: <20111216202745.GE18570@elgon.mountain> (raw)

Hello James Smart,

This is a semi-automatic email about new static checker warnings.

The patch cb69f7decc37: "[SCSI] lpfc 8.3.28: Add support for ABTS 
failure handling" from Dec 13, 2011, leads to the following Smatch 
complaint:

drivers/scsi/lpfc/lpfc_sli.c +8391 lpfc_sli4_abts_err_handler()
	 error: we previously assumed 'ndlp' could be null (see line 8387)

drivers/scsi/lpfc/lpfc_sli.c
  8386	
  8387		if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
                    ^^^^^
New check.

  8388			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
  8389					"3115 Node Context not found, driver "
  8390					"ignoring abts err event\n");
  8391		vport = ndlp->vport;
                        ^^^^^^^^^^^
New dereference.  Maybe the intent was to return after the print
statement?

  8392		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
  8393				"3116 Port generated FCP XRI ABORT event on "

regards,
dan carpenter


             reply	other threads:[~2011-12-16 20:27 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-16 20:27 Dan Carpenter [this message]
2011-12-21 15:01 ` [SCSI] lpfc 8.3.28: Add support for ABTS failure handling James Smart

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