drm/amd/amdgpu/amdgpucs: fix refcount leak of a dmafence obj
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 v5.16.20 by commit b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf. For more details please see the references link.