Messages in this thread Patch in this message | | | From | Chen Ni <> | Subject | [PATCH] dmaengine: bcm2835-dma: Add check for dma_set_max_seg_size | Date | Mon, 29 Apr 2024 12:13:12 +0800 |
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Add check for the return value of dma_set_max_seg_size() and return the error if it fails in order to catch the error.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn> --- drivers/dma/bcm2835-dma.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index 9d74fe97452e..d1e775a2f6b3 100644 --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -899,7 +899,11 @@ static int bcm2835_dma_probe(struct platform_device *pdev) if (!od) return -ENOMEM; - dma_set_max_seg_size(&pdev->dev, 0x3FFFFFFF); + rc = dma_set_max_seg_size(&pdev->dev, 0x3FFFFFFF); + if (rc) { + dev_err(&pdev->dev, "Unable to set dma device segment size\n"); + return rc; + } base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) -- 2.25.1
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