From patchwork Tue Mar 7 04:09:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?VHJldm9yIFd1ICjlkLPmlofoia8p?= X-Patchwork-Id: 13162746 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 38A00C678DB for ; Tue, 7 Mar 2023 04:11:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=yWZd6Pr5msrkiDmQ68UjBFwas1nqizvODS7edDuTvAM=; b=EFjDLG5nh8pzOY +1sDqY+QhA5ek6Ofh0eEEHwFCLO41vRJjt0jvp98TGShDhqACy+6Ywvg028LPToQDGUiJVI07ap/v 1/qgTYF8nlmQGzxWkF/yvPfTd8OljkV0IFmOHxZx+Mb806vaZjw2nUN4omutgoPPnQdKLGcDSbdIb TbkmiZRCxLjCDk5IvWZDOW/yaewtEk8SQpgT8cnVHBvgADT3WYDN1YvsRKx55wPJfywf7YvFKRff+ Rm5awpEoovi8gPxvrQT1VOz+NYocQnbBm+0KzteilSrmvUENoEsaiUpBvl1eg+WTDq5VWCuX5TwUG bjRzEGLwPFFVe+GTVk9g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZOew-00G7P3-D3; Tue, 07 Mar 2023 04:10:42 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZOea-00G7Fd-Ov; Tue, 07 Mar 2023 04:10:22 +0000 X-UUID: f7b02cd2bc9d11edbbe3f76fe852e059-20230306 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=jRNnZrN6xFwN19GVWEkePB6Ng03IX8gMpvzlN1+Rj/4=; b=ROFlP43yU6H/Gi0ljdmb7sk3Xm2Z5C162ql+hP/2xved6bE2pI8Il2oCQGhYajFts2/l3M1OVLIsszzkJiypZ0aLrAEcaQseVwlus5z9QcUe8qvKjXjLwQ/spwfcwCStzDNg/uLrITXCLx9FhUr1PDY24Q+Q6dGbxWpZ7KdmN3M=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.20,REQID:b7ebea5f-b234-4261-9a04-68f2411bfe8e,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:25b5999,CLOUDID:31c96cb2-beed-4dfc-bd9c-e1b22fa6ccc4,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0,NGT X-UUID: f7b02cd2bc9d11edbbe3f76fe852e059-20230306 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1634279333; Mon, 06 Mar 2023 21:10:16 -0700 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Tue, 7 Mar 2023 12:09:42 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Tue, 7 Mar 2023 12:09:42 +0800 From: Trevor Wu To: , , , , , CC: , , , , , Subject: [PATCH 3/4] ASoC: mediatek: mt6358: fix UNINIT problem Date: Tue, 7 Mar 2023 12:09:37 +0800 Message-ID: <20230307040938.7484-4-trevor.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230307040938.7484-1-trevor.wu@mediatek.com> References: <20230307040938.7484-1-trevor.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230306_201020_842463_5BD834CA X-CRM114-Status: GOOD ( 12.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Coverity shows decaring variable reg without initializer. When regmap_read returns an error, reg keeps the value left from earlier computation. To prevent from the unexpected result in the case, assign 0 to reg. Signed-off-by: Trevor Wu --- sound/soc/codecs/mt6358.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/mt6358.c b/sound/soc/codecs/mt6358.c index b54610b27906..d7b157ddc9a8 100644 --- a/sound/soc/codecs/mt6358.c +++ b/sound/soc/codecs/mt6358.c @@ -429,7 +429,7 @@ static int mt6358_put_volsw(struct snd_kcontrol *kcontrol, struct mt6358_priv *priv = snd_soc_component_get_drvdata(component); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; - unsigned int reg; + unsigned int reg = 0; int ret; ret = snd_soc_put_volsw(kcontrol, ucontrol);