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From:   Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
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        <michal.simek@xilinx.com>
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        <git@xilinx.com>, Shravya Kumbham <shravya.kumbham@xilinx.com>,
        "Radhey Shyam Pandey" <radhey.shyam.pandey@xilinx.com>
Subject: [PATCH 1/3] dmaengine: xilinx_dma: check dma_async_device_register return value
Date:   Thu, 17 Dec 2020 23:40:13 +0530
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From: Shravya Kumbham <shravya.kumbham@xilinx.com>

dma_async_device_register() can return non-zero error code. Add
condition to check the return value of dma_async_device_register
function and handle the error path.

Addresses-Coverity: Event check_return.
Signed-off-by: Shravya Kumbham <shravya.kumbham@xilinx.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
---
 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 993297d585c0..e41435be5b79 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -3133,7 +3133,11 @@ static int xilinx_dma_probe(struct platform_device *pdev)
 	}
 
 	/* Register the DMA engine with the core */
-	dma_async_device_register(&xdev->common);
+	err = dma_async_device_register(&xdev->common);
+	if (err) {
+		dev_err(xdev->dev, "failed to register the dma device\n");
+		goto error;
+	}
 
 	err = of_dma_controller_register(node, of_dma_xilinx_xlate,
 					 xdev);
-- 
2.7.4