GSD-2021-1002483 drm/amd/amdgpu: fix potential memleak

drm/amd/amdgpu: fix potential memleak 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 v5.10.84 by commit c746945fb6bcbe3863c9ea6369c7ef376e38e5e...