From patchwork Wed Dec 30 15:44:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 11993333 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 958B0C433DB for ; Wed, 30 Dec 2020 15:45:52 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 17AB720725 for ; Wed, 30 Dec 2020 15:45:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 17AB720725 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 46EB31841; Wed, 30 Dec 2020 16:45:00 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 46EB31841 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1609343150; bh=B6KEEyF4RQKJhn/Tlgm2gPhwOX1a1c48tzMAbskoqNY=; h=From:To:Subject:Date:Cc:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=qGSj+vNcrTeHiUxAJVG4PScJ1wISrcOJWUjpdrPZLhzQYfw6Z71BeFZ2AH78egmia HSWly1OaedPz02BhS1y/PySEY0Kn6iCr1KeGgu/IkjYOTZLbtNUXSlHtxqhYNTZjNc LiCvef+0QwqflnRlCCNbbGTaqg8meg6M+Nlmq6NI= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id AEEABF801ED; Wed, 30 Dec 2020 16:44:59 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id EE850F8020B; Wed, 30 Dec 2020 16:44:57 +0100 (CET) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 818FBF80141 for ; Wed, 30 Dec 2020 16:44:51 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 818FBF80141 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HCKeDJ0K" Received: by mail.kernel.org (Postfix) with ESMTPSA id 413BD20725; Wed, 30 Dec 2020 15:44:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1609343088; bh=B6KEEyF4RQKJhn/Tlgm2gPhwOX1a1c48tzMAbskoqNY=; h=From:To:Cc:Subject:Date:From; b=HCKeDJ0KSZ7nc1CoEISb/ZRNzccPTaWWh06Nn2VIZBsId6eP9cn0oGFUJlOABZZZO iI0X3/jv9pxyQ5bU7W/XqVpiwAVKTetRviaE1CBU80GpLg/jmLlz66OeoO4ZhibBqQ PjjjdalMW1Zz2BoWMBZ8kelnigjz4DMVLkz9RLZvfhx2BBPns1SB0TRK+cYujQxlOH 8MnDwDJqOqRtqV2yMQCPacw1DfF9pBrJ/RhsJA8R+VJ3BdV7xvpCIPfiT77gwd3boZ PiTBMWGGCaRfDf7RBRjRMAgbFOqHd28vArCHhJoja2QAirqWZnxT1vUTZKPDO8Anij h3IyOvDVmuzrg== From: Arnd Bergmann To: Timur Tabi , Nicolin Chen , Mark Brown Subject: [PATCH] ASoC: fsl: fix -Wmaybe-uninitialized warning Date: Wed, 30 Dec 2020 16:44:15 +0100 Message-Id: <20201230154443.656997-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Xiubo Li , Fabio Estevam , Sascha Hauer , Takashi Iwai , Nick Desaulniers , Liam Girdwood , clang-built-linux@googlegroups.com, NXP Linux Team , Pengutronix Kernel Team , Shawn Guo , Nathan Chancellor , Shengjiu Wang , linux-arm-kernel@lists.infradead.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Arnd Bergmann Clang points out a code path that returns an undefined value in an error case: sound/soc/fsl/imx-hdmi.c:165:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsom etimes-uninitialized] if ((hdmi_out && hdmi_in) || (!hdmi_out && !hdmi_in)) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sound/soc/fsl/imx-hdmi.c:212:9: note: uninitialized use occurs here return ret; The driver returns -EINVAL for other broken DT properties, so do it the same way here. Fixes: 6a5f850aa83a ("ASoC: fsl: Add imx-hdmi machine driver") Signed-off-by: Arnd Bergmann Reviewed-by: Nathan Chancellor --- sound/soc/fsl/imx-hdmi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/fsl/imx-hdmi.c b/sound/soc/fsl/imx-hdmi.c index 2c2a76a71940..ede4a9ad1054 100644 --- a/sound/soc/fsl/imx-hdmi.c +++ b/sound/soc/fsl/imx-hdmi.c @@ -164,6 +164,7 @@ static int imx_hdmi_probe(struct platform_device *pdev) if ((hdmi_out && hdmi_in) || (!hdmi_out && !hdmi_in)) { dev_err(&pdev->dev, "Invalid HDMI DAI link\n"); + ret = -EINVAL; goto fail; }