From patchwork Mon May 13 15:30:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sui Jingfeng X-Patchwork-Id: 13663518 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BDB57C25B10 for ; Mon, 13 May 2024 15:31:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CCAE810E836; Mon, 13 May 2024 15:31:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=linux.dev header.i=@linux.dev header.b="xv2NJ8oB"; dkim-atps=neutral Received: from out-170.mta1.migadu.com (out-170.mta1.migadu.com [95.215.58.170]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5030410E82E for ; Mon, 13 May 2024 15:31:24 +0000 (UTC) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1715614282; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WiifdoFYgTp3rVEK2qqeyz0G8r+zsR9iFqUJx/OeTgY=; b=xv2NJ8oBRndXa8ykHGEtOp3Az38+Qtnmuim843TUjh1gWieTYWz6a7OMJGYlc8wi2pYIv+ Cssj7AOECrLYKW8tryoychMlunWVtWmb/Gk5UrnSjOGQMlLDcmUjgvKF5/dAfOFKyP3GN3 sXGdeBCJWv2VOdSAh5ARWgXx27CFts8= From: Sui Jingfeng To: Laurent Pinchart Cc: Andrzej Hajda , Neil Armstrong , Robert Foss , Sascha Hauer , Douglas Anderson , Maxime Ripard , Thomas Zimmermann , Liu Ying , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, Sui Jingfeng , Laurent Pinchart Subject: [PATCH v2 01/12] drm/bridge: simple-bridge: Remove a redundant check on existence of bridge->encoder Date: Mon, 13 May 2024 23:30:58 +0800 Message-ID: <20240513153109.46786-2-sui.jingfeng@linux.dev> In-Reply-To: <20240513153109.46786-1-sui.jingfeng@linux.dev> References: <20240513153109.46786-1-sui.jingfeng@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Because the existence of 'bridge->encoder' has already been checked before the simple_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 simple_bridge_attach() get called. Remove the redundant checking codes "if (!bridge->encoder) { ... }". Reviewed-by: Laurent Pinchart Signed-off-by: Sui Jingfeng --- drivers/gpu/drm/bridge/simple-bridge.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/gpu/drm/bridge/simple-bridge.c b/drivers/gpu/drm/bridge/simple-bridge.c index 5813a2c4fc5e..2ca89f313cd1 100644 --- a/drivers/gpu/drm/bridge/simple-bridge.c +++ b/drivers/gpu/drm/bridge/simple-bridge.c @@ -116,11 +116,6 @@ static int simple_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(&sbridge->connector, &simple_bridge_con_helper_funcs); ret = drm_connector_init_with_ddc(bridge->dev, &sbridge->connector,