drm: Prevent drmcopyfield() to attempt copying a NULL pointer
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 v5.10.150 by commit c28a8082b25ce4ec94999e10a30c50d20bd44a25. For more details please see the references link.