From patchwork Mon Mar 16 08:52:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11439947 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4964C90 for ; Mon, 16 Mar 2020 08:54:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1C32C20663 for ; Mon, 16 Mar 2020 08:54:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="GZzhECju"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="owCX1E0+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1C32C20663 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GqT8xlYVJrfqYmCjvu8+cUFRvV7LqM2oS+2VRJWbyc4=; b=GZzhECjuh2WPDZ ck0ogDkmJ64ef4LS0Gj5vkteN7losDRVlJUydEzHY3aD3uJmf4b0quSSSAXlZQghT0RXB9w1BWLAU jOlzkig5NmR0u2/sadTd9UJ+qhsepWxTGLu5O23sFDbikbQcLMj87M4eto8dTT+h62xuCO+0eL35O ohOsEy+5pv5vHoOQ5yjiBH4WqQmSqSQgxYy9JQdvPXVjJJxwnVQ7tUu2LspN5otWwAEOZTsJ246wW IvJ5EY+wuBkO7H9qmQYujYd/3+4WOvQYJTSBKTqVw1MXVSRS23Tfx8oxkwjNE9iWDDMAWz2sAbjKB udfMCf5mcaFBbxK+AglA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jDlWB-0002Mv-52; Mon, 16 Mar 2020 08:54:39 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jDlUr-0000cu-Ap; Mon, 16 Mar 2020 08:53:19 +0000 X-UUID: eb4aff019246471babdf085390b83b27-20200316 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=Pe2ICmxiDGZfXw8Ju8bu2oy7yN84cTxQ4OAqo9x25H8=; b=owCX1E0+QaZZ9JzzjJR0CXeiGkDPkdRE3+nX35TGNeJZsNhF7CjPp6g7fEwOoiWHt/qWS5dB+vuFfSs7NIBs3+NLA8plRQjNX3h6Y/67w4XFPGXwxkb+sz0NIbII1roZ9UP9U3i+2qwjPor6p/ZTTRLOTZ9+EtVDmAFbRNmVYpM=; X-UUID: eb4aff019246471babdf085390b83b27-20200316 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1258842285; Mon, 16 Mar 2020 00:53:08 -0800 Received: from MTKMBS02N2.mediatek.inc (172.21.101.101) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 16 Mar 2020 01:53:24 -0700 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 16 Mar 2020 16:50:13 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 16 Mar 2020 16:53:52 +0800 From: Stanley Chu To: , , , , Subject: [PATCH v6 1/7] scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc() Date: Mon, 16 Mar 2020 16:52:57 +0800 Message-ID: <20200316085303.20350-2-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200316085303.20350-1-stanley.chu@mediatek.com> References: <20200316085303.20350-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: F3751F886D718EC3FA56A4ABBA8D56BA2D38AB9B8567EA112E77272E6AD0D5362000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200316_015317_395752_22821EAA X-CRM114-Status: UNSURE ( 9.07 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stanley Chu , bvanassche@acm.org, andy.teng@mediatek.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org, cang@codeaurora.org, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, matthias.bgg@gmail.com, beanhuo@micron.com, linux-arm-kernel@lists.infradead.org, asutoshd@codeaurora.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org In ufshcd_disable_tx_lcc(), if ufshcd_dme_get() or ufshcd_dme_peer_get() get fail, uninitialized variable "tx_lanes" may be used as unexpected lane ID for DME configuration. Fix this issue by initializing "tx_lanes". Signed-off-by: Stanley Chu Reviewed-by: Asutosh Das Reviewed-by: Avri Altman Reviewed-by: Can Guo --- drivers/scsi/ufs/ufshcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 5698f1164a5e..314e808b0d4e 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4315,7 +4315,7 @@ EXPORT_SYMBOL_GPL(ufshcd_hba_enable); static int ufshcd_disable_tx_lcc(struct ufs_hba *hba, bool peer) { - int tx_lanes, i, err = 0; + int tx_lanes = 0, i, err = 0; if (!peer) ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES),