drm/nouveau/debugfs: fix file release memory leak
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 v5.14.12 by commit 88c3610045ca6e699331b6bb5c095c5565f30721, it was introduced in version v4.5 by commit 6e9fc177399f08446293fec7607913fdbc95e191. For more details please see the references link.