drm/nouveau/acr: return error when registering LSF if ACR not supported (1c338ed5) · Commits · 戴 / test

drivers/gpu/drm/nouveau/nvkm/subdev/acr/lsfw.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -58,8 +58,12 @@ struct nvkm_acr_lsfw *
		nvkm_acr_lsfw_add(const struct nvkm_acr_lsf_func func, struct nvkm_acr acr,
		struct nvkm_falcon *falcon, enum nvkm_acr_lsf_id id)
		{
		struct nvkm_acr_lsfw *lsfw = nvkm_acr_lsfw_get(acr, id);
		struct nvkm_acr_lsfw *lsfw;

		if (!acr)
		return ERR_PTR(-ENOSYS);

		lsfw = nvkm_acr_lsfw_get(acr, id);
		if (lsfw && lsfw->func) {
		nvkm_error(&acr->subdev, "LSFW %d redefined\n", id);
		return ERR_PTR(-EEXIST);