cifs: fix double free race when mount fails in cifs_get_root()
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 v4.14.270 by commit 147a0e71ccf96df9fc8c2ac500829d8e423ef02c. For more details please see the references link.