From: <dan.carpenter@oracle.com>
To: <varun@chelsio.com>
Cc: linux-scsi@vger.kernel.org
Subject: [bug report] scsi: cxgb4i: Add support for iSCSI segmentation offload
Date: Fri, 10 Jul 2020 17:14:54 +0300 [thread overview]
Message-ID: <20200710141454.GA135495@mwanda> (raw)
Hello Varun Prakash,
This is a semi-automatic email about new static checker warnings.
The patch e33c2482289b: "scsi: cxgb4i: Add support for iSCSI
segmentation offload" from Jun 29, 2020, leads to the following
Smatch complaint:
drivers/scsi/cxgbi/libcxgbi.c:1892 cxgbi_conn_alloc_pdu()
warn: variable dereferenced before check 'cconn' (see line 1891)
drivers/scsi/cxgbi/libcxgbi.c
1890 struct cxgbi_conn *cconn = tcp_conn->dd_data;
1891 struct cxgbi_device *cdev = cconn->chba->cdev;
^^^^^^^^^^^
Unchecked dereference in old code.
1892 struct cxgbi_sock *csk = (cconn && cconn->cep) ? cconn->cep->csk : NULL;
^^^^^
New code adds a check for NULL but it's too late.
1893 struct iscsi_tcp_task *tcp_task = task->dd_data;
1894 struct cxgbi_task_data *tdata = iscsi_task_cxgbi_data(task);
regards,
dan carpenter
next reply other threads:[~2020-07-10 14:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 14:14 dan.carpenter [this message]
2020-07-13 16:25 ` [bug report] scsi: cxgb4i: Add support for iSCSI segmentation offload Varun Prakash
2020-07-10 14:17 dan.carpenter
2020-07-10 14:29 ` Dan Carpenter
2020-07-13 16:41 ` Varun Prakash
2020-07-20 10:28 dan.carpenter
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