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dmaengine: sh: rcar-dmac: Check for error num after dma_set_max_seg_size 

As the possible failure of the dma_set_max_seg_size(), it should be
better to check the return value of the dma_set_max_seg_size().

Fixes: 97d49c59e2 ("dmaengine: rcar-dmac: set scatter/gather max segment size")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220111011239.452837-1-jiasheng@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Jiasheng Jiang 2022-01-11 09:12:39 +08:00 committed by Vinod Koul
parent e831c7aba9
commit da2ad87fba
1 changed files with 4 additions and 1 deletions
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5
drivers/dma/sh/rcar-dmac.c
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@ -1868,7 +1868,10 @@ static int rcar_dmac_probe(struct platform_device *pdev)
dmac->dev = &pdev->dev;
platform_set_drvdata(pdev, dmac);
dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
ret = dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
if (ret)
return ret;
ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
if (ret)
return ret;