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
