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Fri, 6 May 2022 10:54:12 -0700 Envelope-to: git@xilinx.com, balbi@kernel.org, gregkh@linuxfoundation.org, lee.jones@linaro.org, christophe.jaillet@wanadoo.fr, szymon.heidrich@gmail.com, jakobkoschel@gmail.com, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Received: from [10.140.6.18] (port=49800 helo=xhdlakshmis40.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1nn29b-000Fxi-IX; Fri, 06 May 2022 10:54:11 -0700 From: Piyush Mehta To: , , Michal Simek , , , , , , , , CC: , , , Piyush Mehta Subject: [PATCH] usb: gadget: udc: Remove useless variable assignment in xudc_read_fifo() Date: Fri, 6 May 2022 23:23:49 +0530 Message-ID: <20220506175349.10102-1-piyush.mehta@xilinx.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 36fa55f2-1d61-4e94-6a9e-08da2f897015 X-MS-TrafficTypeDiagnostic: MW4PR02MB7442:EE_ X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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CAT:NONE; SFS:(13230001)(4636009)(46966006)(40470700004)(36840700001)(508600001)(2906002)(44832011)(6666004)(7696005)(4744005)(36756003)(5660300002)(8676002)(4326008)(70206006)(26005)(70586007)(9786002)(40460700003)(8936002)(110136005)(7636003)(107886003)(1076003)(54906003)(2616005)(316002)(921005)(356005)(186003)(82310400005)(47076005)(83380400001)(426003)(336012)(36860700001)(102446001)(83996005)(2101003)(473944003); DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 May 2022 17:54:16.2573 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 36fa55f2-1d61-4e94-6a9e-08da2f897015 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.62.198]; Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: BN1NAM02FT054.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR02MB7442 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This patch removes the unused variables assignment warning. Value assigned to variable bufferspace is overwritten, before it can be used. This makes such variable assignment useless. Reported Coverity warning: UNUSED_VALUE Signed-off-by: Piyush Mehta --- drivers/usb/gadget/udc/udc-xilinx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c index 9369801..adfa1ab 100644 --- a/drivers/usb/gadget/udc/udc-xilinx.c +++ b/drivers/usb/gadget/udc/udc-xilinx.c @@ -632,7 +632,7 @@ static int xudc_read_fifo(struct xusb_ep *ep, struct xusb_req *req) dev_dbg(udc->dev, "read %s, %d bytes%s req %p %d/%d\n", ep->ep_usb.name, count, is_short ? "/S" : "", req, req->usb_req.actual, req->usb_req.length); - bufferspace -= count; + /* Completion */ if ((req->usb_req.actual == req->usb_req.length) || is_short) { if (udc->dma_enabled && req->usb_req.length)