ceph: properly put ceph_string reference after async create attempt
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.96 by commit e7be12ca7d3947765b0d7c1c7e0537e748da993a, it was introduced in version v5.7 by commit 9a8d03ca2e2c334d08ee91a3e07dcce31a02fdc6. For more details please see the references link.