[bug report] scsi: target: iscsi: Extract auth functions

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

Hello Dmitry Bogdanov,

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

The patch a75fcb0912a5: "scsi: target: iscsi: Extract auth functions" 
from May 23, 2022, leads to the following Smatch complaint:

    drivers/target/iscsi/iscsi_target_nego.c:830 iscsi_conn_auth_required()
    error: we previously assumed 'se_nacl' could be null (see line 829)

drivers/target/iscsi/iscsi_target_nego.c
   828		se_nacl = conn->sess->se_sess->se_node_acl;
   829		if (!se_nacl) {
                     ^^^^^^^
NULL

   830			pr_debug("Unknown ACL %s is trying to connect\n",
   831				 se_nacl->initiatorname);
                                 ^^^^^^^^^^^^^^^^^^^^^^
Dereferenced

   832			return true;

regards,
dan carpenter