From patchwork Thu Dec 8 11:47:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Kocialkowski X-Patchwork-Id: 13068327 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EAC7C3A5A7 for ; Thu, 8 Dec 2022 11:49:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229960AbiLHLtZ (ORCPT ); Thu, 8 Dec 2022 06:49:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229957AbiLHLsT (ORCPT ); Thu, 8 Dec 2022 06:48:19 -0500 Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 039DC6F0E3; Thu, 8 Dec 2022 03:48:15 -0800 (PST) Received: (Authenticated sender: paul.kocialkowski@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id D1A01240011; Thu, 8 Dec 2022 11:48:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1670500094; 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=AdvPC73c9zwfkFT3idm11mKPKt/UTJmdPBrpsnJ9sEg=; b=DtiFiffK3Z98ZaFmBXwerOQeFzge8eRkBWde/Pd1X3KqrPJKGWFDwDVKVtpGS/eiMk9/5E TorFM8o8IyCQ2MvECljMaTW6U1RFBqHCGt5BvVK9K9e+wf5gjJ229V2pcvZXTq5Od5r9kt ++SnRgVYIEetCpQ8n9mj0WIBH4LeCnWIFTtEaYBzk1crXGFjs5SO9a3xfIhVwS7SrcGgpi +GIXb573ZWdyHhxJAaaOkq4XYbEQaSFRBVxpEpG2ri7/vVRi/jvuGm16+v/dkNjPaLppf+ u/W+BheJsV1Jly/MvH57Vo5TpJCnNjX09LWFI5OckHEex8C/jIFh/54+N7l7tg== From: Paul Kocialkowski To: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev Cc: Yong Deng , Paul Kocialkowski , Mauro Carvalho Chehab , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Thomas Petazzoni , Hans Verkuil , Sakari Ailus Subject: [PATCH 7/9] media: sun6i-isp: bridge: Error out on invalid port to fix warning Date: Thu, 8 Dec 2022 12:47:40 +0100 Message-Id: <20221208114742.399461-8-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221208114742.399461-1-paul.kocialkowski@bootlin.com> References: <20221208114742.399461-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The enabled variable is only set for a valid port and used later, which triggers an uninitialized use smatch warning. Explicitly error out in that case to fix the warning. Signed-off-by: Paul Kocialkowski --- drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c index a95709d2c573..4f34c1bc8be9 100644 --- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c +++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_proc.c @@ -416,7 +416,7 @@ static int sun6i_isp_proc_notifier_bound(struct v4l2_async_notifier *notifier, enabled = !proc->source_csi0.expected; break; default: - break; + return -EINVAL; } source->subdev = remote_subdev;