From f4fd2ec08f17b34f1c7c18414d5fc882efd51e83 Mon Sep 17 00:00:00 2001 From: Fabien Dessenne Date: Wed, 24 Apr 2019 11:21:25 +0200 Subject: dmaengine: stm32-dma: use platform_get_irq() platform_get_resource(pdev, IORESOURCE_IRQ) is not recommended for requesting IRQ's resources, as they can be not ready yet. Using platform_get_irq() instead is preferred for getting IRQ even if it was not retrieved earlier. Signed-off-by: Fabien Dessenne Reviewed-by: Pierre-Yves MORDRET Signed-off-by: Vinod Koul --- drivers/dma/stm32-dma.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers/dma') diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c index ba239b529fa9..33068185c0fe 100644 --- a/drivers/dma/stm32-dma.c +++ b/drivers/dma/stm32-dma.c @@ -1302,13 +1302,14 @@ static int stm32_dma_probe(struct platform_device *pdev) for (i = 0; i < STM32_DMA_MAX_CHANNELS; i++) { chan = &dmadev->chan[i]; - res = platform_get_resource(pdev, IORESOURCE_IRQ, i); - if (!res) { - ret = -EINVAL; - dev_err(&pdev->dev, "No irq resource for chan %d\n", i); + chan->irq = platform_get_irq(pdev, i); + if (chan->irq < 0) { + ret = chan->irq; + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "No irq resource for chan %d\n", i); goto err_unregister; } - chan->irq = res->start; ret = devm_request_irq(&pdev->dev, chan->irq, stm32_dma_chan_irq, 0, dev_name(chan2dev(chan)), chan); -- cgit v1.2.3-58-ga151