CVE-2021-47369 s390/qeth: fix NULL deref in qeth_clear_working_pool_list()

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: fix NULL deref in qethclearworkingpoollist When qethsetonline calls qethclearworkingpoollist to roll back after an error exit from qethhardsetupcard, we are at risk of accessing card-qdio.inq before it was allocated by...