drm/nouveau/nvif: return success from sclass even for objects without children (5c15bf70) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/gpu/drm/nouveau/nvkm/core/ioctl.c

+6 −6

Original line number	Diff line number	Diff line
		@@ -57,18 +57,18 @@ nvkm_ioctl_sclass(struct nvkm_handle handle, void data, u32 size)
		} *args = data;
		int ret;

		if (!nv_iclass(object, NV_PARENT_CLASS)) {
		nvif_debug(object, "cannot have children (sclass)\n");
		return -ENODEV;
		}

		nvif_ioctl(object, "sclass size %d\n", size);
		if (nvif_unpack(args->v0, 0, 0, true)) {
		nvif_ioctl(object, "sclass vers %d count %d\n",
		args->v0.version, args->v0.count);
		if (size == args->v0.count * sizeof(args->v0.oclass[0])) {
		ret = nvkm_parent_lclass(object, args->v0.oclass,
		if (nv_iclass(object, NV_PARENT_CLASS)) {
		ret = nvkm_parent_lclass(object,
		args->v0.oclass,
		args->v0.count);
		} else {
		ret = 0;
		}
		if (ret >= 0) {
		args->v0.count = ret;
		ret = 0;