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Tue, 16 Aug 2022 23:11:43 -0700 From: Swati Agarwal To: , , , , CC: , , , , , , , , , , Subject: [PATCH v2 3/3] dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure Date: Wed, 17 Aug 2022 11:41:25 +0530 Message-ID: <20220817061125.4720-4-swati.agarwal@xilinx.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220817061125.4720-1-swati.agarwal@xilinx.com> References: <20220817061125.4720-1-swati.agarwal@xilinx.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1605b740-49a6-4b93-9b46-08da80175c2a X-MS-TrafficTypeDiagnostic: DM6PR02MB6496:EE_ 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; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:149.199.62.198;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:xsj-pvapexch01.xlnx.xilinx.com;PTR:unknown-62-198.xilinx.com;CAT:NONE;SFS:(13230016)(4636009)(376002)(346002)(136003)(39860400002)(396003)(36840700001)(46966006)(40470700004)(186003)(478600001)(7696005)(6666004)(336012)(26005)(41300700001)(2616005)(426003)(47076005)(1076003)(83380400001)(36756003)(5660300002)(82310400005)(40480700001)(54906003)(2906002)(70206006)(8676002)(110136005)(316002)(40460700003)(356005)(70586007)(7636003)(36860700001)(9786002)(44832011)(4326008)(7416002)(82740400003)(8936002)(102446001);DIR:OUT;SFP:1101; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The driver does not handle the failure case while calling dma_set_mask_and_coherent API. In case of failure, capture the return value of API and then report an error. Addresses-coverity: Unchecked return value (CHECKED_RETURN) Signed-off-by: Swati Agarwal Reviewed-by: Radhey Shyam Pandey --- drivers/dma/xilinx/xilinx_dma.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index f63ec9d862ff..7ce8bb160a59 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -3211,7 +3211,11 @@ static int xilinx_dma_probe(struct platform_device *pdev) xdev->ext_addr = false; /* Set the dma mask bits */ - dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width)); + err = dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width)); + if (err < 0) { + dev_err(xdev->dev, "DMA mask error %d\n", err); + goto disable_clks; + } /* Initialize the DMA engine */ xdev->common.dev = &pdev->dev; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel