fs: jfs: fix possible NULL pointer dereference in dbFree()
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 v5.17.14 by commit b6267c8bf885d1ccdedd08d40cfec9598e2fe582. For more details please see the references link.