Re: [PATCH fix for 3.17 2/2] xhci: Silence "xHCI xhci_drop_endpoint called with disabled ep ..." messages

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Hi,

On 09/27/2014 03:01 PM, Hans de Goede wrote:
> Silence the "xHCI xhci_drop_endpoint called with disabled ep ..." messages
> appearing on a successful usb device reset.
> 
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>

Note no Cc stable for this one, even though it did get send to stable
accidentally, sorry.

Regards,

Hans

> ---
>  drivers/usb/host/xhci.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
> index 64160ff..5d985e4 100644
> --- a/drivers/usb/host/xhci.c
> +++ b/drivers/usb/host/xhci.c
> @@ -1636,6 +1636,12 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
>  
>  	ep_index = xhci_get_endpoint_index(&ep->desc);
>  	ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index);
> +	/*
> +	 * If drop_endpoint gets called after a usb_device_reset, then
> +	 * xhci_discover_or_reset_device has already dropped the eps
> +	 */
> +	if (xhci->devs[udev->slot_id]->eps[ep_index].ring == NULL)
> +		return 0;
>  	/* If the HC already knows the endpoint is disabled,
>  	 * or the HCD has noted it is disabled, ignore this request
>  	 */
> 
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