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path: root/drivers/gpu/drm/drm_mode_config.c
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Diffstat (limited to 'drivers/gpu/drm/drm_mode_config.c')
-rw-r--r--drivers/gpu/drm/drm_mode_config.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
index e5c653357024..21e353bd3948 100644
--- a/drivers/gpu/drm/drm_mode_config.c
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -145,6 +145,11 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
count = 0;
connector_id = u64_to_user_ptr(card_res->connector_id_ptr);
drm_for_each_connector_iter(connector, &conn_iter) {
+ /* only expose writeback connectors if userspace understands them */
+ if (!file_priv->writeback_connectors &&
+ (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK))
+ continue;
+
if (drm_lease_held(file_priv, connector->base.id)) {
if (count < card_res->count_connectors &&
put_user(connector->base.id, connector_id + count)) {