CVE-2022-50840 scsi: snic: Fix possible UAF in snic_tgt_create()

In the Linux kernel, the following vulnerability has been resolved: scsi: snic: Fix possible UAF in snictgtcreate Smatch reports a warning as follows: drivers/scsi/snic/snicdisc.c:307 snictgtcreate warn: '&tgt-list' not removed from list If deviceadd fails in snictgtcreate, tgt will be freed, but...