media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
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 v5.4.220 by commit 9181af2dbf06e7f432e5dbe88d10b22343e851b9. For more details please see the references link.