From: Inki Dae <inki.dae@samsung.com>
Date: Mon, 3 Jul 2017 17:42:17 +0900
Subject: drm/bridge: change return type of drm_bridge_add function
Git-commit: 9928688492aea161eeeaad7af34f372794cb2f53
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

This patch changes return type of drm_bridge_add function.

This function never return negative value but returns only 0.
So it changes the return type of this function to void one.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1499071350-25168-2-git-send-email-inki.dae@samsung.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/drm_bridge.c |    7 +------
 include/drm/drm_bridge.h     |    2 +-
 2 files changed, 2 insertions(+), 7 deletions(-)

--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -67,17 +67,12 @@ static LIST_HEAD(bridge_list);
  * drm_bridge_add - add the given bridge to the global bridge list
  *
  * @bridge: bridge control structure
- *
- * RETURNS:
- * Unconditionally returns Zero.
  */
-int drm_bridge_add(struct drm_bridge *bridge)
+void drm_bridge_add(struct drm_bridge *bridge)
 {
 	mutex_lock(&bridge_lock);
 	list_add_tail(&bridge->list, &bridge_list);
 	mutex_unlock(&bridge_lock);
-
-	return 0;
 }
 EXPORT_SYMBOL(drm_bridge_add);
 
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -245,7 +245,7 @@ struct drm_bridge {
 	void *driver_private;
 };
 
-int drm_bridge_add(struct drm_bridge *bridge);
+void drm_bridge_add(struct drm_bridge *bridge);
 void drm_bridge_remove(struct drm_bridge *bridge);
 struct drm_bridge *of_drm_find_bridge(struct device_node *np);
 int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,