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dmaengine: xilinx_dma: check dma_async_device_register return value 

commit 99974aedbd upstream.

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.
Fixes: 9cd4360de6 ("dma: Add Xilinx AXI Video Direct Memory Access Engine driver support")
Signed-off-by: Shravya Kumbham <shravya.kumbham@xilinx.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Link: https://lore.kernel.org/r/1608722462-29519-2-git-send-email-radhey.shyam.pandey@xilinx.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Shravya Kumbham 2020-12-23 16:51:00 +05:30 committed by Greg Kroah-Hartman
parent c15556cb34
commit e6f247a5f9
1 changed files with 5 additions and 1 deletions
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6
drivers/dma/xilinx/xilinx_dma.c
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@ -2742,7 +2742,11 @@ 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);