On Wed, 12 Aug 2015, Jeremy Linton wrote:
> 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 <jeremy.linton@xxxxxxx>
> ---
> 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) {
>
Too bad the ohci-platform driver doesn't get the same update, but
it clearly wouldn't belong in this patch set. Anyway,
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Alan Stern
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