Because the existence of 'bridge->encoder' has already been checked before the panel_bridge_attach() function get called, and the drm_bridge_attach() will quit with a negative error code returned if it fails for some reasons. Hence, it is guaranteed that the .encoder member of the drm_bridge instance is not NULL when panel_bridge_attach() function get called. Remove the redundant checking codes "if (!bridge->encoder) { ... }". Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> Signed-off-by: Sui Jingfeng <sui.jingfeng@xxxxxxxxx> --- drivers/gpu/drm/bridge/panel.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 32506524d9a2..56c40b516a8f 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -67,11 +67,6 @@ static int panel_bridge_attach(struct drm_bridge *bridge, if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) return 0; - if (!bridge->encoder) { - DRM_ERROR("Missing encoder\n"); - return -ENODEV; - } - drm_connector_helper_add(connector, &panel_bridge_connector_helper_funcs); -- 2.43.0