From 17f69b5fa6f642898a7dae16dee6997869b1f234 Mon Sep 17 00:00:00 2001 From: Jeremy Linton Date: Wed, 19 Aug 2015 16:36:31 -0500 Subject: [PATCH] USB: ehci-platform: Display a DMA configuration error message If the ehci driver fails to configure the dma settings then display a dev error instead of simply failing. This is triggered in an ACPI world if the user fails to set the _CCA on the device. Tested-by: Huang Shijie Reviewed-by: Graeme Gregory Reviewed-by: Hanjun Guo Acked-by: Alan Stern Signed-off-by: Jeremy Linton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-platform.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 5c3c08598682..d9144d5ab794 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -162,8 +162,10 @@ static int ehci_platform_probe(struct platform_device *dev) err = dma_coerce_mask_and_coherent(&dev->dev, pdata->dma_mask_64 ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32)); - if (err) + if (err) { + dev_err(&dev->dev, "Error: DMA mask configuration failed\n"); return err; + } irq = platform_get_irq(dev, 0); if (irq < 0) { -- 2.34.1