The job is not yet initialized here.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2037Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Tested-by: NPierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: NChristian König <christian.koenig@amd.com>
Fixes: cdc7893f ("drm/amdgpu: use job and ib structures directly in CS parsers")
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>