When the nvif_vmm_type is invalid, we will return error directly
without freeing the args in nvif_vmm_ctor(), which leading a memory
leak. Fix it by setting the ret -EINVAL and goto done.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/all/202312040659.4pJpMafN-lkp@xxxxxxxxx/
Fixes: 6b252cf42281 ("drm/nouveau: nvkm/vmm: implement raw ops to manage uvmm")
Signed-off-by: Fanhua Li <lifanhua5@xxxxxxxxxx>