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drm/nouveau/nvif: return success from sclass even for objects without children

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-08-20 14:54:16 +10:00
parent 99d4d36ad6
commit 5c15bf709e
1 changed files with 6 additions and 6 deletions
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12
drivers/gpu/drm/nouveau/nvkm/core/ioctl.c
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@ -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;