From mboxrd@z Thu Jan 1 00:00:00 1970 From: jeremy.linton@arm.com (Jeremy Linton) Date: Wed, 12 Aug 2015 16:51:29 -0500 Subject: [PATCH 2/3] Display a DMA error message In-Reply-To: <1439416290-21228-1-git-send-email-jeremy.linton@arm.com> References: <1439416290-21228-1-git-send-email-jeremy.linton@arm.com> Message-ID: <1439416290-21228-3-git-send-email-jeremy.linton@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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. Signed-off-by: Jeremy Linton --- 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 2593def..82e396f 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 setup failed\n"); return err; + } irq = platform_get_irq(dev, 0); if (irq < 0) { -- 2.4.3