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 v5.15.34 by commit 3edd8646cb7c11b57c90e026bda6f21076223f5b. For more details please see the references link.