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From: Sui Jingfeng <sui.jingfeng@linux.dev>
To: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Douglas Anderson <dianders@chromium.org>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Liu Ying <victor.liu@nxp.com>,
	dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	imx@lists.linux.dev,
	Sui Jingfeng <sui.jingfeng@linux.dev>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: [PATCH v2 03/12] drm/bridge: nxp-ptn3460: Remove a redundant check on existence of bridge->encoder
Date: Mon, 13 May 2024 23:31:00 +0800
Message-ID: <20240513153109.46786-4-sui.jingfeng@linux.dev>
In-Reply-To: <20240513153109.46786-1-sui.jingfeng@linux.dev>
References: <20240513153109.46786-1-sui.jingfeng@linux.dev>
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Because the existence of 'bridge->encoder' has already been checked before
the ptn3460_bridge_attach() function get called, and 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 the ptn3460_bridge_attach() function get called.

Remove the redundant checking codes "if (!bridge->encoder) { ... }".

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
---
 drivers/gpu/drm/bridge/nxp-ptn3460.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c
index ed93fd4c3265..e77aab965fcf 100644
--- a/drivers/gpu/drm/bridge/nxp-ptn3460.c
+++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c
@@ -229,11 +229,6 @@ static int ptn3460_bridge_attach(struct drm_bridge *bridge,
 	if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
 		return 0;
 
-	if (!bridge->encoder) {
-		DRM_ERROR("Parent encoder object not found");
-		return -ENODEV;
-	}
-
 	ptn_bridge->connector.polled = DRM_CONNECTOR_POLL_HPD;
 	ret = drm_connector_init(bridge->dev, &ptn_bridge->connector,
 			&ptn3460_connector_funcs, DRM_MODE_CONNECTOR_LVDS);
-- 
2.43.0