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dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure

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[ Upstream commit 8f2b6bc79c32f0fa60df000ae387a790ec80eae9 ]

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 <[email protected]>
Reviewed-by: Radhey Shyam Pandey <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Swati Agarwal 2022-08-17 11:41:25 +05:30 • committed by Greg Kroah-Hartman
commit aefe2f55a9
1 changed files with 5 additions and 1 deletions
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6
drivers/dma/xilinx/xilinx_dma.c
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@ -2703,7 +2703,11 @@ 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;