drm/drv: Fix potential memory leak in drmdevinit()
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 v5.15.80 by commit 07e56de8766fe5be67252596244b84ac0ec0de91, it was introduced in version v5.8 by commit 2cbf7fc6718b9443ecd6261308c6348d8ffcccae. For more details please see the references link.