drm/sti: sti_vdo: clean up drm_bridge_add call

This patch removes unnecessary checking of return value.
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NArchit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1499071350-25168-15-git-send-email-inki.dae@samsung.com

drivers/gpu/drm/sti/sti_dvo.c

@@ -463,11 +463,7 @@ static int sti_dvo_bind(struct device *dev, struct device *master, void *data)
 	bridge->driver_private = dvo;
 	bridge->funcs = &sti_dvo_bridge_funcs;
 	bridge->of_node = dvo->dev.of_node;
-	err = drm_bridge_add(bridge);
-	if (err) {
-		DRM_ERROR("Failed to add bridge\n");
-		return err;
-	}
+	drm_bridge_add(bridge);
 
 	err = drm_bridge_attach(encoder, bridge, NULL);
 	if (err) {