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| author | Shravya Kumbham <shravya.kumbham@xilinx.com> | 2020-12-23 16:51:00 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-17 14:05:36 +0100 |
| commit | e6f247a5f927c1c1f070af15a84d2d65cec56549 (patch) | |
| tree | 967e9d40e972cf2f93028f9057f121d60f6f6185 /drivers/dma | |
| parent | c15556cb344a6e8235393013e60a7e2648ec699e (diff) | |
| download | linux-e6f247a5f927c1c1f070af15a84d2d65cec56549.tar.gz linux-e6f247a5f927c1c1f070af15a84d2d65cec56549.tar.bz2 linux-e6f247a5f927c1c1f070af15a84d2d65cec56549.zip | |
dmaengine: xilinx_dma: check dma_async_device_register return value
commit 99974aedbd73523969afb09f33c6e3047cd0ddae 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: 9cd4360de609 ("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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/xilinx/xilinx_dma.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index a6abfe702c5a..73cb2362322f 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -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); |