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dmaengine: bcm2835: Print error in case setting DMA mask fails 

During enabling of the RPi 4, we found out that the driver doesn't provide
a helpful error message in case setting DMA mask fails. So add one.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/1563297318-4900-1-git-send-email-wahrenst@gmx.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Stefan Wahren 2019-07-16 19:15:18 +02:00 committed by Vinod Koul
parent d2bfe7b5d1
commit 72503b25ee
1 changed files with 3 additions and 1 deletions
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4
drivers/dma/bcm2835-dma.c
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@ -871,8 +871,10 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (rc) if (rc) {
dev_err(&pdev->dev, "Unable to set DMA mask\n");
return rc; return rc;
}
od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL); od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL);
if (!od) if (!od)